diff --git a/src/js/net/minecraft/client/GameSettings.js b/src/js/net/minecraft/client/GameSettings.js
index 6b0edb0..c56a963 100644
--- a/src/js/net/minecraft/client/GameSettings.js
+++ b/src/js/net/minecraft/client/GameSettings.js
@@ -9,6 +9,7 @@ export default class GameSettings {
         this.viewBobbing = true;
         this.ambientOcclusion = true;
         this.sensitivity = 100;
+        this.viewDistance = 4;
     }
 
     load() {
diff --git a/src/js/net/minecraft/client/Minecraft.js b/src/js/net/minecraft/client/Minecraft.js
index c8772ee..be81312 100644
--- a/src/js/net/minecraft/client/Minecraft.js
+++ b/src/js/net/minecraft/client/Minecraft.js
@@ -18,7 +18,7 @@ import * as THREE from "../../../../../libraries/three.module.js";
 
 export default class Minecraft {
 
-    static VERSION = "1.0.0"
+    static VERSION = "1.0.1"
     static URL_GITHUB = "https://github.com/labystudio/js-minecraft";
 
     /**
@@ -88,6 +88,7 @@ export default class Minecraft {
             this.worldRenderer.reset();
             this.itemRenderer.reset();
 
+            this.world.chunks.clear();
             this.world = null;
             this.player = null;
             this.loadingScreen = null;
@@ -232,7 +233,7 @@ export default class Minecraft {
             let cameraChunkX = Math.floor(this.player.x) >> 4;
             let cameraChunkZ = Math.floor(this.player.z) >> 4;
 
-            let renderDistance = WorldRenderer.RENDER_DISTANCE;
+            let renderDistance = this.settings.viewDistance;
             let requiredChunks = Math.pow(renderDistance * 2 - 1, 2);
             let loadedChunks = this.world.chunks.size;
 
@@ -354,6 +355,9 @@ export default class Minecraft {
                     }
                 }
             }
+
+            // Rebuild multiple chunk sections
+            this.worldRenderer.flushRebuild = true;
         }
     }
 
diff --git a/src/js/net/minecraft/client/gui/GuiScreen.js b/src/js/net/minecraft/client/gui/GuiScreen.js
index 46caf72..b31a157 100644
--- a/src/js/net/minecraft/client/gui/GuiScreen.js
+++ b/src/js/net/minecraft/client/gui/GuiScreen.js
@@ -6,6 +6,7 @@ export default class GuiScreen extends Gui {
         super();
 
         this.buttonList = [];
+        this.previousScreen = null;
     }
 
     setup(minecraft, width, height) {
@@ -43,7 +44,7 @@ export default class GuiScreen extends Gui {
 
     keyTyped(key, character) {
         if (key === "Escape") {
-            this.minecraft.displayScreen(null);
+            this.minecraft.displayScreen(this.previousScreen);
             return true;
         }
 
diff --git a/src/js/net/minecraft/client/gui/screens/GuiControls.js b/src/js/net/minecraft/client/gui/screens/GuiControls.js
index 53025b2..9c73be3 100644
--- a/src/js/net/minecraft/client/gui/screens/GuiControls.js
+++ b/src/js/net/minecraft/client/gui/screens/GuiControls.js
@@ -35,7 +35,7 @@ export default class GuiControls extends GuiScreen {
             settings.togglePerspective = key;
         }));
 
-        this.buttonList.push(new GuiButton("Done", this.width / 2 - 100, y + 110, 200, 20, () => {
+        this.buttonList.push(new GuiButton("Done", this.width / 2 - 100, y + 130, 200, 20, () => {
             this.minecraft.displayScreen(this.previousScreen);
         }));
     }
diff --git a/src/js/net/minecraft/client/gui/screens/GuiCreateWorld.js b/src/js/net/minecraft/client/gui/screens/GuiCreateWorld.js
index 0009dc7..a0a8252 100644
--- a/src/js/net/minecraft/client/gui/screens/GuiCreateWorld.js
+++ b/src/js/net/minecraft/client/gui/screens/GuiCreateWorld.js
@@ -3,6 +3,7 @@ import GuiButton from "../widgets/GuiButton.js";
 import World from "../../world/World.js";
 import GuiTextField from "../widgets/GuiTextField.js";
 import Random from "../../../util/Random.js";
+import Long from "../../../../../../../libraries/long.js";
 
 export default class GuiCreateWorld extends GuiScreen {
 
@@ -25,6 +26,12 @@ export default class GuiCreateWorld extends GuiScreen {
             let seed = this.fieldSeed.getText();
             if (seed.length === 0) {
                 seed = new Random().nextLong();
+            } else if (typeof seed === "string") {
+                let h = 0;
+                for (let i = 0; i < seed.length; i++) {
+                    h = 31 * h + seed.charCodeAt(i);
+                }
+                seed = Long.fromNumber(h);
             }
             this.minecraft.loadWorld(new World(this.minecraft, seed));
         }));
diff --git a/src/js/net/minecraft/client/gui/screens/GuiMainMenu.js b/src/js/net/minecraft/client/gui/screens/GuiMainMenu.js
index 999ec0e..7f80fe6 100644
--- a/src/js/net/minecraft/client/gui/screens/GuiMainMenu.js
+++ b/src/js/net/minecraft/client/gui/screens/GuiMainMenu.js
@@ -64,7 +64,7 @@ export default class GuiMainMenu extends GuiScreen {
         this.drawLogo(stack, x, y);
 
         // Draw version
-        this.drawString(stack, "minecraft-js " + Minecraft.VERSION, 2, this.height - 10, 0xFFFFFF);
+        this.drawString(stack, "js-minecraft " + Minecraft.VERSION, 2, this.height - 10, 0xFFFFFF);
 
         // Draw copyright
         let mouseOver = mouseX > this.width / 2 + 70 && mouseY > this.height - 20;
diff --git a/src/js/net/minecraft/client/gui/screens/GuiOptions.js b/src/js/net/minecraft/client/gui/screens/GuiOptions.js
index aa1224c..9e747aa 100644
--- a/src/js/net/minecraft/client/gui/screens/GuiOptions.js
+++ b/src/js/net/minecraft/client/gui/screens/GuiOptions.js
@@ -28,11 +28,14 @@ export default class GuiOptions extends GuiScreen {
         this.buttonList.push(new GuiSliderButton("FOV", settings.fov, 50, 100, this.width / 2 - 100, y + 24 * 2, 200, 20, value => {
             settings.fov = value;
         }));
-        this.buttonList.push(new GuiButton("Controls...", this.width / 2 - 100, y + 24 * 3, 200, 20, () => {
+        this.buttonList.push(new GuiSliderButton("Render Distance", settings.viewDistance, 2, 16, this.width / 2 - 100, y + 24 * 3, 200, 20, value => {
+            settings.viewDistance = value;
+        }));
+        this.buttonList.push(new GuiButton("Controls...", this.width / 2 - 100, y + 24 * 4, 200, 20, () => {
             this.minecraft.displayScreen(new GuiControls(this));
         }));
 
-        this.buttonList.push(new GuiButton("Done", this.width / 2 - 100, y + 110, 200, 20, () => {
+        this.buttonList.push(new GuiButton("Done", this.width / 2 - 100, y + 130, 200, 20, () => {
             this.minecraft.displayScreen(this.previousScreen);
         }));
     }
diff --git a/src/js/net/minecraft/client/render/WorldRenderer.js b/src/js/net/minecraft/client/render/WorldRenderer.js
index 8d1690a..461d506 100644
--- a/src/js/net/minecraft/client/render/WorldRenderer.js
+++ b/src/js/net/minecraft/client/render/WorldRenderer.js
@@ -10,7 +10,6 @@ import * as THREE from "../../../../../../libraries/three.module.js";
 
 export default class WorldRenderer {
 
-    static RENDER_DISTANCE = 4;
     static THIRD_PERSON_DISTANCE = 4;
 
     constructor(minecraft, window) {
@@ -48,6 +47,8 @@ export default class WorldRenderer {
         this.prevFogBrightness = 0;
         this.fogBrightness = 0;
 
+        this.flushRebuild = false;
+
         this.initialize();
     }
 
@@ -148,6 +149,17 @@ export default class WorldRenderer {
     }
 
     onTick() {
+        // Rebuild 2 chunk sections each tick
+        for (let i = 0; i < 2; i++) {
+            if (this.chunkSectionUpdateQueue.length !== 0) {
+                let chunkSection = this.chunkSectionUpdateQueue.shift();
+                if (chunkSection != null) {
+                    // Rebuild chunk
+                    chunkSection.rebuild(this);
+                }
+            }
+        }
+
         this.prevFogBrightness = this.fogBrightness;
         this.prevEquippedProgress = this.equippedProgress;
 
@@ -174,7 +186,7 @@ export default class WorldRenderer {
 
         // Update fog brightness
         let brightnessAtPosition = this.minecraft.world.getLightBrightnessForEntity(player);
-        let renderDistance = WorldRenderer.RENDER_DISTANCE / 32.0;
+        let renderDistance = this.minecraft.settings.viewDistance / 32.0;
         let fogBrightness = brightnessAtPosition * (1.0 - renderDistance) + renderDistance;
         this.fogBrightness += (fogBrightness - this.fogBrightness) * 0.1;
     }
@@ -482,8 +494,8 @@ export default class WorldRenderer {
         } else {
             let world = this.minecraft.world;
 
-            let viewDistance = WorldRenderer.RENDER_DISTANCE * ChunkSection.SIZE;
-            let viewFactor = 1.0 - Math.pow(0.25 + 0.75 * WorldRenderer.RENDER_DISTANCE / 32.0, 0.25);
+            let viewDistance = this.minecraft.settings.viewDistance * ChunkSection.SIZE;
+            let viewFactor = 1.0 - Math.pow(0.25 + 0.75 * this.minecraft.settings.viewDistance / 32.0, 0.25);
 
             let angle = world.getCelestialAngle(partialTicks);
 
@@ -538,7 +550,7 @@ export default class WorldRenderer {
 
     renderChunks(cameraChunkX, cameraChunkZ) {
         let world = this.minecraft.world;
-        let renderDistance = WorldRenderer.RENDER_DISTANCE;
+        let renderDistance = this.minecraft.settings.viewDistance;
 
         // Update chunks
         for (let [index, chunk] of world.chunks) {
@@ -602,13 +614,17 @@ export default class WorldRenderer {
             return distance2 - distance1;
         });
 
-        // Rebuild 8 chunk sections each frame
-        for (let i = 0; i < 8; i++) {
-            if (this.chunkSectionUpdateQueue.length !== 0) {
-                let chunkSection = this.chunkSectionUpdateQueue.shift();
-                if (chunkSection != null) {
-                    // Rebuild chunk
-                    chunkSection.rebuild(this);
+        // Flush by rebuilding 8 chunk sections
+        if(this.flushRebuild) {
+            this.flushRebuild = false;
+
+            for (let i = 0; i < 8; i++) {
+                if (this.chunkSectionUpdateQueue.length !== 0) {
+                    let chunkSection = this.chunkSectionUpdateQueue.shift();
+                    if (chunkSection != null) {
+                        // Rebuild chunk
+                        chunkSection.rebuild(this);
+                    }
                 }
             }
         }
diff --git a/src/js/net/minecraft/client/world/World.js b/src/js/net/minecraft/client/world/World.js
index f073678..6568241 100644
--- a/src/js/net/minecraft/client/world/World.js
+++ b/src/js/net/minecraft/client/world/World.js
@@ -9,7 +9,6 @@ import Vector3 from "../../util/Vector3.js";
 import Vector4 from "../../util/Vector4.js";
 import MetadataChunkBlock from "../../util/MetadataChunkBlock.js";
 import * as THREE from "../../../../../../libraries/three.module.js";
-import WorldRenderer from "../render/WorldRenderer.js";
 import Random from "../../util/Random.js";
 
 export default class World {
@@ -652,8 +651,9 @@ export default class World {
     }
 
     loadSpawnChunks() {
-        for (let x = -WorldRenderer.RENDER_DISTANCE; x <= WorldRenderer.RENDER_DISTANCE; x++) {
-            for (let z = -WorldRenderer.RENDER_DISTANCE; z <= WorldRenderer.RENDER_DISTANCE; z++) {
+        let viewDistance = this.minecraft.settings.viewDistance;
+        for (let x = -viewDistance; x <= viewDistance; x++) {
+            for (let z = -viewDistance; z <= viewDistance; z++) {
                 this.getChunkAt(x + this.spawn.x >> 4, z + this.spawn.z >> 4);
             }
         }