diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f7a1f6c18..14252f55d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,6 +27,8 @@ jobs:
         include:
          - javaVersion: 16
            mcVersion: '1.17.1'
+         - javaVersion: 17
+           mcVersion: '1.18.1'
       fail-fast: false
 
     steps:
diff --git a/docs/README.md b/docs/README.md
index c99953b18..80b65ad92 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -16,7 +16,7 @@ First time using Node.js? You may want to start with the [tutorial](tutorial.md)
 
 ## Features
 
- * Supports Minecraft 1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16 and 1.17.
+ * Supports Minecraft 1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17 and 1.18.
  * Entity knowledge and tracking.
  * Block knowledge. You can query the world around you. Milliseconds to find any block.
  * Physics and movement - handle all bounding boxes
@@ -230,10 +230,14 @@ The most updated and useful are :
 Simply run: `npm test`
 
 ### Testing specific version
-Run `npm mocha_test -- -g <version>`, where `<version>` is a minecraft version like `1.12`, `1.15.2`...
+Run `npm run mocha_test -- -g <version>`, where `<version>` is a minecraft version like `1.12`, `1.15.2`...
 
 ### Testing specific test
-Run `npm mocha_test -- -g <test_name>`, where `<test_name>` is a name of the test like `bed`, `useChests`, `rayTrace`...
+Run `npm run mocha_test -- -g <test_name>`, where `<test_name>` is a name of the test like `bed`, `useChests`, `rayTrace`...
+
+### Example
+
+`npm run mocha_test -- -g "1.18.1.*BlockFinder"` to run the block finder test for 1.18.1
 
 ## License
 
diff --git a/docs/api.md b/docs/api.md
index cd6825fca..35b06491b 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -818,6 +818,14 @@ Whether the bot is using the item that it's holding, for example eating food or
 
 #### bot.game.serverBrand
 
+#### bot.game.minY
+
+minimum y of the world
+
+#### bot.game.height
+
+world height
+
 ### bot.physicsEnabled
 
 Enable physics, default true.
diff --git a/lib/features.json b/lib/features.json
index 2366323e4..3fbcbfe8a 100644
--- a/lib/features.json
+++ b/lib/features.json
@@ -7,7 +7,7 @@
   {
     "name": "spawner",
     "description": "spawner is called spawner",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "blockMetadata",
@@ -17,12 +17,12 @@
   {
     "name": "blockStateId",
     "description": "block metadata is encoded as state id",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "creativeSleepNearMobs",
     "description": "can sleep near mobs in creative",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "fixedPointPosition",
@@ -32,7 +32,7 @@
   {
     "name": "doublePosition",
     "description": "Entity positions are represented with double",
-    "versions": ["1.9", "1.17.1"]
+    "versions": ["1.9", "1.18.1"]
   },
   {
     "name": "fixedPointDelta",
@@ -42,7 +42,7 @@
   {
     "name": "fixedPointDelta128",
     "description": "Delta of position are represented with fixed point numbers times 128",
-    "versions": ["1.9", "1.17.1"]
+    "versions": ["1.9", "1.18.1"]
   },
   {
     "name": "customChannelMCPrefixed",
@@ -52,12 +52,12 @@
   {
     "name": "customChannelIdentifier",
     "description": "custom channel is an identifier starting in minecraft namespace",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "dimensionDataIsAvailable",
     "description": "dimensionData is available, providing an additional information about the current dimension",
-    "versions": ["1.17", "1.17.1"]
+    "versions": ["1.17", "1.18.1"]
   },
   {
     "name": "useItemWithBlockPlace",
@@ -67,7 +67,7 @@
   {
     "name": "useItemWithOwnPacket",
     "description": "use item is done with its own packet",
-    "versions": ["1.9", "1.17.1"]
+    "versions": ["1.9", "1.18.1"]
   },
   {
     "name": "blockPlaceHasHeldItem",
@@ -87,7 +87,7 @@
   {
     "name": "blockPlaceHasInsideBlock",
     "description": "block_place packet has inside block",
-    "versions": ["1.14", "1.17.1"]
+    "versions": ["1.14", "1.18.1"]
   },
   {
     "name": "teleportUsesPositionPacket",
@@ -102,7 +102,7 @@
   {
     "name": "teleportUsesOwnPacket",
     "description": "teleport is done using its own packet",
-    "versions": ["1.9", "1.17.1"]
+    "versions": ["1.9", "1.18.1"]
   },
   {
     "name": "oneBlockForSeveralVariations",
@@ -112,7 +112,7 @@
   {
     "name": "blockSchemeIsFlat",
     "description": "all variations of a packet have their own id",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "tabCompleteHasNoToolTip",
@@ -122,7 +122,7 @@
   {
     "name": "tabCompleteHasAToolTip",
     "description": "tab complete has a tool tip",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "effectAreMinecraftPrefixed",
@@ -132,7 +132,7 @@
   {
     "name": "effectAreNotPrefixed",
     "description": "effect are not prefixed",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "itemsAreAlsoBlocks",
@@ -142,12 +142,12 @@
   {
     "name": "itemsAreNotBlocks",
     "description": "items are not block",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "fishingBobberCorrectlyNamed",
     "description": "the fishing hook entity is named fishing_bobber",
-    "versions": ["1.14", "1.17.1"]
+    "versions": ["1.14", "1.18.1"]
   },
   {
     "name": "editBookIsPluginChannel",
@@ -157,7 +157,7 @@
   {
     "name": "hasEditBookPacket",
     "description": "book editing is handled through a packet",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "clientUpdateBookIdWhenSign",
@@ -197,12 +197,12 @@
   {
     "name": "dimensionIsAWorld",
     "description": "description is a world name (string)",
-    "versions": ["1.16.2", "1.17.1"]
+    "versions": ["1.16.2", "1.18.1"]
   },
   {
     "name": "dimensionDataIsAvailable",
     "description": "dimensionData is available, describing additional dimension information",
-    "versions": ["1.17", "1.17.1"]
+    "versions": ["1.17", "1.18.1"]
   },
   {
     "name": "doesntHaveChestType",
@@ -227,22 +227,22 @@
   {
     "name": "hasAttackCooldown",
     "description": "if there is a cooldown after attacks to deal full damage",
-    "versions": ["1.9", "1.17.1"]
+    "versions": ["1.9", "1.18.1"]
   },
   {
     "name": "usesLoginPacket",
     "description": "uses the login packet as defined in mcData",
-    "versions": ["1.16", "1.17.1"]
+    "versions": ["1.16", "1.18.1"]
   },
   {
     "name": "usesMultiblockSingleLong",
     "description": "in the multi_block_change packet is stored as a single number",
-    "versions": ["1.16.2", "1.17.1"]
+    "versions": ["1.16.2", "1.18.1"]
   },
   {
     "name": "usesMultiblock3DChunkCoords",
     "description": "in the multi_block_change packet, all 3 axis coords are defined",
-    "versions": ["1.16.2", "1.17.1"]
+    "versions": ["1.16.2", "1.18.1"]
   },
   {
     "name": "setBlockUsesMetadataNumber",
@@ -257,7 +257,7 @@
   {
     "name": "selectingTradeMovesItems",
     "description": "selecting a trade automatically puts the required items into trading slots",
-    "versions": ["1.14", "1.17.1"]
+    "versions": ["1.14", "1.18.1"]
   },
   {
     "name": "resourcePackUsesHash",
@@ -272,7 +272,7 @@
   {
     "name": "teamUsesChatComponents",
     "description": "teams use chatcomponents for formatting",
-    "versions": ["1.13", "1.17.1"]
+    "versions": ["1.13", "1.18.1"]
   },
   {
     "name": "teamUsesScoreboard",
@@ -287,7 +287,7 @@
   {
     "name": "enderCrystalNameNoCapsWithUnderscore",
     "description": "this is when the end_crystal's entity name is end_crystal",
-    "versions": ["1.14", "1.17.1"]
+    "versions": ["1.14", "1.18.1"]
   },
   {
     "name": "entityNameUpperCaseNoUnderscore",
@@ -307,7 +307,7 @@
   {
     "name": "stateIdUsed",
     "description": "starting in 1.17.1, actionId has been replaced with stateId",
-    "versions": ["1.17.1", "1.17.1"]
+    "versions": ["1.17.1", "1.18.1"]
   },
   {
     "name": "actionIdUsed",
@@ -317,11 +317,16 @@
   {
     "name": "setSlotAsTransaction",
     "description": "use setslot as transaction instead of just hoping it'll work",
-    "versions": ["1.17", "1.17.1"]
+    "versions": ["1.17", "1.18.1"]
   },
   {
     "name": "armAnimationBeforeUse",
     "description": "arm animation packet sent before use entity packet",
     "versions": ["1.8", "1.8.9"]
+  },
+  {
+    "name": "tallWorld",
+    "description": "world starts at -64 and ends at 384",
+    "versions": ["1.18", "1.18.1"]
   }
 ]
diff --git a/lib/loader.js b/lib/loader.js
index 79e264924..4b631b85c 100644
--- a/lib/loader.js
+++ b/lib/loader.js
@@ -63,7 +63,7 @@ function createBot (options = {}) {
   options.username = options.username ?? 'Player'
   options.version = options.version ?? false
   options.plugins = options.plugins ?? {}
-  options.hideErrors = options.hideErrors ?? true
+  options.hideErrors = options.hideErrors ?? false
   options.logErrors = options.logErrors ?? true
   options.loadInternalPlugins = options.loadInternalPlugins ?? true
   options.client = options.client ?? null
diff --git a/lib/plugins/blocks.js b/lib/plugins/blocks.js
index b12c32775..16dc7f6e2 100644
--- a/lib/plugins/blocks.js
+++ b/lib/plugins/blocks.js
@@ -42,13 +42,15 @@ function inject (bot, { version, storageBuilder }) {
     delete paintingsByPos[painting.position]
   }
 
-  function addBlockEntity (nbtData) {
-    const blockEntity = nbt.simplify(nbtData)
-    const pos = new Vec3(blockEntity.x, blockEntity.y, blockEntity.z).floored()
+  function addBlockEntity (nbtData, x, y, z, type) {
+    const blockEntity = nbtData === undefined ? {} : nbt.simplify(nbtData)
+    const pos = (x !== undefined ? new Vec3(x, y, z) : new Vec3(blockEntity.x, blockEntity.y, blockEntity.z)).floored()
     // Set raw nbt of blockEntity
     blockEntity.raw = nbtData
+    blockEntity.type = type
+    const signType = 7
     // Handle signs
-    if (blockEntity.id === 'minecraft:sign' || blockEntity.id === 'Sign') {
+    if (blockEntity.id === 'minecraft:sign' || blockEntity.id === 'Sign' || blockEntity.type === signType) {
       const prepareJson = (i) => {
         const data = blockEntity[`Text${i}`]
 
@@ -90,11 +92,7 @@ function inject (bot, { version, storageBuilder }) {
     let column = bot.world.getColumn(args.x, args.z)
     if (!column) {
       // Allocates new chunk object while taking world's custom min/max height into account
-      if (bot.supportFeature('dimensionDataIsAvailable')) {
-        column = new Chunk({ minY: bot.game.dimensionData.min_y, worldHeight: bot.game.dimensionData.height })
-      } else {
-        column = new Chunk()
-      }
+      column = new Chunk({ minY: bot.game.minY, worldHeight: bot.game.height })
     }
 
     try {
@@ -102,6 +100,9 @@ function inject (bot, { version, storageBuilder }) {
       if (args.biomes !== undefined) {
         column.loadBiomes(args.biomes)
       }
+      if (args.skyLight !== undefined) {
+        column.loadParsedLight(args.skyLight, args.blockLight, args.skyLightMask, args.blockLightMask, args.emptySkyLightMask, args.emptyBlockLightMask)
+      }
       bot.world.setColumn(args.x, args.z, column)
     } catch (e) {
       bot.emit('error', e)
@@ -206,13 +207,17 @@ function inject (bot, { version, storageBuilder }) {
     let next = start
     while (next) {
       const column = bot.world.getColumn(next.x, next.z)
-      if (next.y >= 0 && next.y < 16 && column && !visitedSections.has(next.toString())) {
-        const section = column.sections[next.y]
+      const sectionY = next.y + Math.abs(bot.game.minY >> 4)
+      const totalSections = bot.game.height >> 4
+      if (sectionY >= 0 && sectionY < totalSections && column && !visitedSections.has(next.toString())) {
+        const section = column.sections[sectionY]
         if (useExtraInfo === true || isBlockInSection(section, matcher)) {
-          const cursor = new Vec3(0, 0, 0)
-          for (cursor.x = next.x * 16; cursor.x < next.x * 16 + 16; cursor.x++) {
-            for (cursor.y = next.y * 16; cursor.y < next.y * 16 + 16; cursor.y++) {
-              for (cursor.z = next.z * 16; cursor.z < next.z * 16 + 16; cursor.z++) {
+          const begin = new Vec3(next.x * 16, sectionY * 16 + bot.game.minY, next.z * 16)
+          const cursor = begin.clone()
+          const end = cursor.offset(16, 16, 16)
+          for (cursor.x = begin.x; cursor.x < end.x; cursor.x++) {
+            for (cursor.y = begin.y; cursor.y < end.y; cursor.y++) {
+              for (cursor.z = begin.z; cursor.z < end.z; cursor.z++) {
                 if (fullMatcher(cursor) && cursor.distanceTo(point) <= maxDistance) blocks.push(cursor.clone())
               }
             }
@@ -299,11 +304,7 @@ function inject (bot, { version, storageBuilder }) {
   bot._client.on('update_light', (packet) => {
     let column = bot.world.getColumn(packet.chunkX, packet.chunkZ)
     if (!column) {
-      if (bot.supportFeature('dimensionDataIsAvailable')) {
-        column = new Chunk({ minY: bot.game.dimensionData.min_y, worldHeight: bot.game.dimensionData.height })
-      } else {
-        column = new Chunk()
-      }
+      column = new Chunk({ minY: bot.game.minY, worldHeight: bot.game.height })
       bot.world.setColumn(packet.chunkX, packet.chunkZ, column)
     }
 
@@ -323,12 +324,23 @@ function inject (bot, { version, storageBuilder }) {
       biomes: packet.biomes,
       skyLightSent: bot.game.dimension === 'minecraft:overworld',
       groundUp: packet.groundUp,
-      data: packet.chunkData
+      data: packet.chunkData,
+      trustEdges: packet.trustEdges,
+      skyLightMask: packet.skyLightMask,
+      blockLightMask: packet.blockLightMask,
+      emptySkyLightMask: packet.emptySkyLightMask,
+      emptyBlockLightMask: packet.emptyBlockLightMask,
+      skyLight: packet.skyLight,
+      blockLight: packet.blockLight
     })
 
     if (typeof packet.blockEntities !== 'undefined') {
-      for (const nbtData of packet.blockEntities) {
-        addBlockEntity(nbtData)
+      for (const blockEntity of packet.blockEntities) {
+        if (blockEntity.x !== undefined) {
+          addBlockEntity(blockEntity.nbtData, blockEntity.x, blockEntity.y, blockEntity.z, blockEntity.type)
+        } else {
+          addBlockEntity(blockEntity)
+        }
       }
     }
   })
@@ -448,7 +460,11 @@ function inject (bot, { version, storageBuilder }) {
   })
 
   bot._client.on('tile_entity_data', (packet) => {
-    addBlockEntity(packet.nbtData)
+    if (packet.location !== undefined) {
+      addBlockEntity(packet.nbtData, packet.location.x, packet.location.y, packet.location.z, packet.action)
+    } else {
+      addBlockEntity(packet.nbtData)
+    }
   })
 
   bot.updateSign = (block, text) => {
diff --git a/lib/plugins/game.js b/lib/plugins/game.js
index 1908037b9..25946d994 100644
--- a/lib/plugins/game.js
+++ b/lib/plugins/game.js
@@ -37,7 +37,12 @@ function inject (bot, options) {
     }
 
     if (bot.supportFeature('dimensionDataIsAvailable')) {
-      bot.game.dimensionData = nbt.simplify(packet.dimension)
+      const dimensionData = nbt.simplify(packet.dimension)
+      bot.game.minY = dimensionData.min_y
+      bot.game.height = dimensionData.height
+    } else {
+      bot.game.minY = 0
+      bot.game.height = 256
     }
     if (packet.difficulty) {
       bot.game.difficulty = difficultyNames[packet.difficulty]
diff --git a/lib/version.js b/lib/version.js
index 33de0aabe..5783dc678 100644
--- a/lib/version.js
+++ b/lib/version.js
@@ -1,4 +1,4 @@
 module.exports = {
-  supportedVersions: ['1.8', '1.9', '1.10', '1.11', '1.12', '1.13', '1.14', '1.15', '1.16', '1.17'],
-  testedVersions: ['1.8.8', '1.9.4', '1.10.2', '1.11.2', '1.12.2', '1.13.2', '1.14.4', '1.15.2', '1.16.5', '1.17.1']
+  supportedVersions: ['1.8', '1.9', '1.10', '1.11', '1.12', '1.13', '1.14', '1.15', '1.16', '1.17', '1.18'],
+  testedVersions: ['1.8.8', '1.9.4', '1.10.2', '1.11.2', '1.12.2', '1.13.2', '1.14.4', '1.15.2', '1.16.5', '1.17.1', '1.18.1']
 } // when updating testedVersions, make sure to update CI.yml
diff --git a/package.json b/package.json
index 64af8e45e..04ac08621 100644
--- a/package.json
+++ b/package.json
@@ -21,12 +21,12 @@
   },
   "license": "MIT",
   "dependencies": {
-    "minecraft-data": "^2.95.0",
+    "minecraft-data": "^2.109.0",
     "minecraft-protocol": "^1.26.5",
     "prismarine-biome": "^1.1.1",
     "prismarine-block": "^1.10.3",
     "prismarine-chat": "^1.3.3",
-    "prismarine-chunk": "^1.26.0",
+    "prismarine-chunk": "^1.28.1",
     "prismarine-entity": "^2.0.0",
     "prismarine-item": "^1.11.0",
     "prismarine-nbt": "^2.0.0",
diff --git a/test/externalTests/exampleInventory.js b/test/externalTests/exampleInventory.js
index 511e39952..68e93b55a 100644
--- a/test/externalTests/exampleInventory.js
+++ b/test/externalTests/exampleInventory.js
@@ -52,7 +52,7 @@ module.exports = () => async (bot) => {
     assert.strictEqual(name, 'inventory')
     bot.chat('/op inventory') // to counteract spawn protection
     bot.chat('/clear inventory')
-    bot.chat('/setblock 52 4 0 crafting_table') // to make stone bricks stairs
+    bot.chat(`/setblock 52 ${bot.test.groundY} 0 crafting_table`) // to make stone bricks stairs
     bot.chat('/give inventory dirt 64')
     bot.chat('/give inventory stick 7')
     bot.chat('/give inventory iron_ore 64')
@@ -67,7 +67,7 @@ module.exports = () => async (bot) => {
       await bot.test.wait(100)
     }
     // cleanup
-    bot.chat('/setblock 52 4 0 air')
+    bot.chat(`/setblock 52 ${bot.test.groundY} 0 air`)
     cb()
 
     function makeTest (inStr, outStr) {
diff --git a/test/externalTests/plugins/testCommon.js b/test/externalTests/plugins/testCommon.js
index 91fc5cb55..2e3c40330 100644
--- a/test/externalTests/plugins/testCommon.js
+++ b/test/externalTests/plugins/testCommon.js
@@ -14,6 +14,7 @@ function inject (bot) {
   const Item = require('prismarine-item')(bot.version)
 
   bot.test = {}
+  bot.test.groundY = bot.supportFeature('tallWorld') ? -60 : 4
   bot.test.sayEverywhere = sayEverywhere
   bot.test.clearInventory = callbackify(clearInventory)
   bot.test.becomeSurvival = callbackify(becomeSurvival)
@@ -68,7 +69,8 @@ function inject (bot) {
   async function resetBlocksToSuperflat () {
     const groundY = 4
     for (let y = groundY + 4; y >= groundY - 1; y--) {
-      bot.chat(`/fill ~-5 ${y} ~-5 ~5 ${y} ~5 ` + layerNames[y])
+      const realY = y + bot.test.groundY - 4
+      bot.chat(`/fill ~-5 ${realY} ~-5 ~5 ${realY} ~5 ` + layerNames[y])
     }
     await bot.test.wait(100)
   }
@@ -85,7 +87,7 @@ function inject (bot) {
     await becomeCreative()
     await clearInventory()
     bot.creative.startFlying()
-    await teleport(new Vec3(0, 4, 0))
+    await teleport(new Vec3(0, bot.test.groundY, 0))
     await bot.waitForChunksToLoad()
     await resetBlocksToSuperflat()
     await sleep(1000)
@@ -197,7 +199,7 @@ function inject (bot) {
         checkCondition: message => message.json.translate === 'multiplayer.player.joined'
       })
       childBotName = message.json.with[0].insertion
-      bot.chat(`/tp ${childBotName} 50 4 0`)
+      bot.chat(`/tp ${childBotName} 50 ${bot.test.groundY} 0`)
       setTimeout(() => {
         bot.chat('loaded')
       }, 5000)
diff --git a/test/externalTests/useChests.js b/test/externalTests/useChests.js
index faa6910c5..c7bcf9e56 100644
--- a/test/externalTests/useChests.js
+++ b/test/externalTests/useChests.js
@@ -6,12 +6,14 @@ module.exports = () => async (bot) => {
   const mcData = require('minecraft-data')(bot.version)
   const Item = require('prismarine-item')(bot.version)
 
-  const smallChestLocation = new Vec3(0, 4, -1)
-  const largeChestLocations = [new Vec3(0, 4, 1), new Vec3(1, 4, 1)]
-  const smallTrappedChestLocation = new Vec3(1, 4, 0)
+  bot.test.groundY = bot.supportFeature('tallWorld') ? -60 : 4
+
+  const smallChestLocation = new Vec3(0, bot.test.groundY, -1)
+  const largeChestLocations = [new Vec3(0, bot.test.groundY, 1), new Vec3(1, bot.test.groundY, 1)]
+  const smallTrappedChestLocation = new Vec3(1, bot.test.groundY, 0)
   const largeTrappedChestLocations = [
-    new Vec3(-1, 4, 1),
-    new Vec3(-1, 4, 0)
+    new Vec3(-1, bot.test.groundY, 1),
+    new Vec3(-1, bot.test.groundY, 0)
   ]
   const chestSlot = 36
   const trappedChestSlot = 37
diff --git a/test/internalTest.js b/test/internalTest.js
index 449c6f34a..fd58adfb3 100644
--- a/test/internalTest.js
+++ b/test/internalTest.js
@@ -10,6 +10,33 @@ for (const supportedVersion of mineflayer.testedVersions) {
   const version = mcData.version
   const Chunk = require('prismarine-chunk')(supportedVersion)
 
+  function generateChunkPacket (chunk) {
+    const lights = chunk.dumpLight()
+    return {
+      x: 0,
+      z: 0,
+      groundUp: true,
+      biomes: chunk.dumpBiomes !== undefined ? chunk.dumpBiomes() : undefined,
+      heightmaps: {
+        type: 'compound',
+        name: '',
+        value: {
+          MOTION_BLOCKING: { type: 'longArray', value: new Array(36).fill([0, 0]) }
+        }
+      }, // send fake heightmap
+      bitMap: chunk.getMask(),
+      chunkData: chunk.dump(),
+      blockEntities: [],
+      trustEdges: false,
+      skyLightMask: lights?.skyLightMask,
+      blockLightMask: lights?.blockLightMask,
+      emptySkyLightMask: lights?.emptySkyLightMask,
+      emptyBlockLightMask: lights?.emptyBlockLightMask,
+      skyLight: lights?.skyLight,
+      blockLight: lights?.blockLight
+    }
+  }
+
   describe(`mineflayer_internal ${version.minecraftVersion}`, function () {
     this.timeout(10 * 1000)
     let bot
@@ -27,6 +54,39 @@ for (const supportedVersion of mineflayer.testedVersions) {
           version: supportedVersion,
           port: 25567
         })
+        bot.test = {}
+
+        bot.test.buildChunk = () => {
+          if (bot.supportFeature('tallWorld')) {
+            return new Chunk({ minY: -64, worldHeight: 384 })
+          } else {
+            return new Chunk()
+          }
+        }
+
+        bot.test.generateLoginPacket = () => {
+          let loginPacket
+          if (bot.supportFeature('usesLoginPacket')) {
+            loginPacket = mcData.loginPacket
+            loginPacket.entityId = 0 // Default login packet in minecraft-data 1.16.5 is 1, so set it to 0
+          } else {
+            loginPacket = {
+              entityId: 0,
+              levelType: 'fogetaboutit',
+              gameMode: 0,
+              previousGameMode: 255,
+              worldNames: ['minecraft:overworld'],
+              dimension: 0,
+              worldName: 'minecraft:overworld',
+              hashedSeed: [0, 0],
+              difficulty: 0,
+              maxPlayers: 20,
+              reducedDebugInfo: 1,
+              enableRespawnScreen: true
+            }
+          }
+          return loginPacket
+        }
         done()
       })
     })
@@ -104,46 +164,10 @@ for (const supportedVersion of mineflayer.testedVersions) {
         done()
       })
       server.on('login', (client) => {
-        let loginPacket
-        if (bot.supportFeature('usesLoginPacket')) {
-          loginPacket = mcData.loginPacket
-        } else {
-          loginPacket = {
-            entityId: 0,
-            levelType: 'fogetaboutit',
-            gameMode: 0,
-            previousGameMode: 255,
-            worldNames: ['minecraft:overworld'],
-            dimension: 0,
-            worldName: 'minecraft:overworld',
-            hashedSeed: [0, 0],
-            difficulty: 0,
-            maxPlayers: 20,
-            reducedDebugInfo: 1,
-            enableRespawnScreen: true
-          }
-        }
-
-        client.write('login', loginPacket)
-        const chunk = new Chunk()
-
+        client.write('login', bot.test.generateLoginPacket())
+        const chunk = bot.test.buildChunk()
         chunk.setBlockType(pos, goldId)
-        client.write('map_chunk', {
-          x: 0,
-          z: 0,
-          groundUp: true,
-          biomes: chunk.dumpBiomes !== undefined ? chunk.dumpBiomes() : undefined,
-          heightmaps: {
-            type: 'compound',
-            name: '',
-            value: {
-              MOTION_BLOCKING: { type: 'longArray', value: new Array(36).fill([0, 0]) }
-            }
-          }, // send fake heightmap
-          bitMap: chunk.getMask(),
-          chunkData: chunk.dump(),
-          blockEntities: []
-        })
+        client.write('map_chunk', generateChunkPacket(chunk))
       })
     })
 
@@ -168,45 +192,11 @@ for (const supportedVersion of mineflayer.testedVersions) {
           }
         })
         server.on('login', (client) => {
-          let loginPacket
-          if (bot.supportFeature('usesLoginPacket')) {
-            loginPacket = mcData.loginPacket
-          } else {
-            loginPacket = {
-              entityId: 0,
-              levelType: 'fogetaboutit',
-              gameMode: 0,
-              previousGameMode: 255,
-              worldNames: ['minecraft:overworld'],
-              dimension: 0,
-              worldName: 'minecraft:overworld',
-              hashedSeed: [0, 0],
-              difficulty: 0,
-              maxPlayers: 20,
-              reducedDebugInfo: 1,
-              enableRespawnScreen: true
-            }
-          }
-          client.write('login', loginPacket)
-          const chunk = new Chunk()
+          client.write('login', bot.test.generateLoginPacket())
+          const chunk = bot.test.buildChunk()
 
           chunk.setBlockType(pos, goldId)
-          client.write('map_chunk', {
-            x: 0,
-            z: 0,
-            groundUp: true,
-            biomes: chunk.dumpBiomes !== undefined ? chunk.dumpBiomes() : undefined,
-            heightmaps: {
-              type: 'compound',
-              name: '',
-              value: {
-                MOTION_BLOCKING: { type: 'longArray', value: new Array(36).fill([0, 0]) }
-              }
-            }, // send fake heightmap
-            bitMap: chunk.getMask(),
-            chunkData: chunk.dump(),
-            blockEntities: []
-          })
+          client.write('map_chunk', generateChunkPacket(chunk))
           client.write('position', {
             x: 1.5,
             y: 80,
@@ -224,10 +214,9 @@ for (const supportedVersion of mineflayer.testedVersions) {
       const pos = vec3(1, 65, 1)
       const goldId = 41
       it('switchWorld respawn', (done) => {
-        let loginPacket
+        const loginPacket = bot.test.generateLoginPacket()
         let respawnPacket
         if (bot.supportFeature('usesLoginPacket')) {
-          loginPacket = mcData.loginPacket
           loginPacket.worldName = 'minecraft:overworld'
           loginPacket.hashedSeed = [0, 0]
           loginPacket.entityId = 0
@@ -248,39 +237,10 @@ for (const supportedVersion of mineflayer.testedVersions) {
             gamemode: 0,
             levelType: 'default'
           }
-          loginPacket = {
-            entityId: 0,
-            levelType: 'fogetaboutit',
-            gameMode: 0,
-            previousGameMode: 255,
-            worldNames: ['minecraft:overworld', 'minecraft:nether', 'minecraft:the_end'],
-            dimension: 0,
-            worldName: 'minecraft:overworld',
-            hashedSeed: [0, 0],
-            difficulty: 0,
-            maxPlayers: 20,
-            reducedDebugInfo: 1,
-            enableRespawnScreen: true
-          }
         }
-        const chunk = new Chunk()
+        const chunk = bot.test.buildChunk()
         chunk.setBlockType(pos, goldId)
-        const chunkPacket = {
-          x: 0,
-          z: 0,
-          groundUp: true,
-          biomes: chunk.dumpBiomes !== undefined ? chunk.dumpBiomes() : undefined,
-          heightmaps: {
-            type: 'compound',
-            name: '',
-            value: {
-              MOTION_BLOCKING: { type: 'longArray', value: new Array(36).fill([0, 0]) }
-            }
-          }, // send fake heightmap
-          bitMap: chunk.getMask(),
-          chunkData: chunk.dump(),
-          blockEntities: []
-        }
+        const chunkPacket = generateChunkPacket(chunk)
         const positionPacket = {
           x: 1.5,
           y: 80,
@@ -344,26 +304,10 @@ for (const supportedVersion of mineflayer.testedVersions) {
 
     describe('entities', () => {
       it('entity id changes on login', (done) => {
-        let loginPacket
+        const loginPacket = bot.test.generateLoginPacket()
         server.on('login', (client) => {
           if (bot.supportFeature('usesLoginPacket')) {
-            loginPacket = mcData.loginPacket
             loginPacket.entityId = 0 // Default login packet in minecraft-data 1.16.5 is 1, so set it to 0
-          } else {
-            loginPacket = {
-              entityId: 0,
-              levelType: 'fogetaboutit',
-              gameMode: 0,
-              previousGameMode: 255,
-              worldNames: ['minecraft:overworld'],
-              dimension: 0,
-              worldName: 'minecraft:overworld',
-              hashedSeed: [0, 0],
-              difficulty: 0,
-              maxPlayers: 20,
-              reducedDebugInfo: 1,
-              enableRespawnScreen: true
-            }
           }
           client.write('login', loginPacket)
           bot.once('login', () => {
@@ -659,28 +603,10 @@ for (const supportedVersion of mineflayer.testedVersions) {
 
       server.once('login', (client) => {
         bot.time.timeOfDay = 18000
-        let loginPacket
-        if (bot.supportFeature('usesLoginPacket')) {
-          loginPacket = mcData.loginPacket
-        } else {
-          loginPacket = {
-            entityId: 0,
-            levelType: 'fogetaboutit',
-            gameMode: 0,
-            previousGameMode: 255,
-            worldNames: ['minecraft:overworld'],
-            dimension: 0,
-            worldName: 'minecraft:overworld',
-            hashedSeed: [0, 0],
-            difficulty: 0,
-            maxPlayers: 20,
-            reducedDebugInfo: 1,
-            enableRespawnScreen: true
-          }
-        }
+        const loginPacket = bot.test.generateLoginPacket()
         client.write('login', loginPacket)
 
-        const chunk = new Chunk()
+        const chunk = bot.test.buildChunk()
 
         for (const bed in beds) {
           chunk.setBlockType(beds[bed].head, bedId)
@@ -739,22 +665,7 @@ for (const supportedVersion of mineflayer.testedVersions) {
           metadata: []
         })
 
-        client.write('map_chunk', {
-          x: 0,
-          z: 0,
-          groundUp: true,
-          biomes: chunk.dumpBiomes !== undefined ? chunk.dumpBiomes() : undefined,
-          heightmaps: {
-            type: 'compound',
-            name: '',
-            value: {
-              MOTION_BLOCKING: { type: 'longArray', value: new Array(36).fill([0, 0]) }
-            }
-          }, // send fake heightmap
-          bitMap: chunk.getMask(),
-          chunkData: chunk.dump(),
-          blockEntities: []
-        })
+        client.write('map_chunk', generateChunkPacket(chunk))
       })
     })