diff --git a/lib/features.json b/lib/features.json
index b7c2655f1a..75fab0a24a 100644
--- a/lib/features.json
+++ b/lib/features.json
@@ -323,5 +323,10 @@
     "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"]
   }
 ]
diff --git a/test/externalTests/exampleBlockFinder.js b/test/externalTests/exampleBlockFinder.js
index 9eb1f099fe..781b393b91 100644
--- a/test/externalTests/exampleBlockFinder.js
+++ b/test/externalTests/exampleBlockFinder.js
@@ -3,7 +3,7 @@ const assert = require('assert')
 module.exports = () => async (bot) => {
   await bot.test.runExample('examples/blockfinder.js', async (name, cb) => {
     assert.strictEqual(name, 'finder')
-    await bot.test.wait(8000)
+    await bot.test.wait(2000)
     await bot.test.tellAndListen(name, 'find dirt', (message) => {
       const matches = message.match(/I found ([0-9]+) (.+?) blocks in (.+?) ms/)
       if (matches.length !== 4 || matches[1] === '0' || matches[2] !== 'dirt' || parseFloat(matches[3]) > 500) {
diff --git a/test/externalTests/exampleInventory.js b/test/externalTests/exampleInventory.js
index 511e399529..68e93b55a8 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 91fc5cb55d..52bf67d1bc 100644
--- a/test/externalTests/plugins/testCommon.js
+++ b/test/externalTests/plugins/testCommon.js
@@ -11,6 +11,7 @@ module.exports = inject
 
 function inject (bot) {
   console.log(bot.version)
+  bot.test.groundY = bot.supportFeature('tallWorld') ? -60 : 4
   const Item = require('prismarine-item')(bot.version)
 
   bot.test = {}
@@ -66,8 +67,7 @@ function inject (bot) {
   ]
 
   async function resetBlocksToSuperflat () {
-    const groundY = 4
-    for (let y = groundY + 4; y >= groundY - 1; y--) {
+    for (let y = bot.test.groundY + 4; y >= bot.test.groundY - 1; y--) {
       bot.chat(`/fill ~-5 ${y} ~-5 ~5 ${y} ~5 ` + layerNames[y])
     }
     await bot.test.wait(100)
@@ -85,7 +85,7 @@ 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 +197,7 @@ 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 faa6910c54..c7bcf9e561 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