diff --git a/1.18/icon.png b/1.18/icon.png
new file mode 100644
index 0000000..7d59375
Binary files /dev/null and b/1.18/icon.png differ
diff --git a/1.18/instance.cfg b/1.18/instance.cfg
new file mode 100644
index 0000000..a914fbc
--- /dev/null
+++ b/1.18/instance.cfg
@@ -0,0 +1,19 @@
+ForgeVersion=
+InstanceType=OneSix
+IntendedVersion=
+LWJGLVersion=
+LiteloaderVersion=
+LogPrePostOutput=true
+MCLaunchMethod=LauncherPart
+OverrideCommands=false
+OverrideConsole=false
+OverrideJavaArgs=false
+OverrideJavaLocation=false
+OverrideMCLaunchMethod=false
+OverrideMemory=false
+OverrideWindow=false
+iconKey=icon
+lastLaunchTime=0
+name=1.18
+notes=
+totalTimePlayed=
diff --git a/1.18/libraries/OptiFine_1.18_HD_U_H3.jar b/1.18/libraries/OptiFine_1.18_HD_U_H3.jar
new file mode 100644
index 0000000..898d17d
Binary files /dev/null and b/1.18/libraries/OptiFine_1.18_HD_U_H3.jar differ
diff --git a/1.18/libraries/launchwrapper-of-2.3.jar b/1.18/libraries/launchwrapper-of-2.3.jar
new file mode 100644
index 0000000..091364d
Binary files /dev/null and b/1.18/libraries/launchwrapper-of-2.3.jar differ
diff --git a/1.18/mmc-pack.json b/1.18/mmc-pack.json
new file mode 100644
index 0000000..f483e45
--- /dev/null
+++ b/1.18/mmc-pack.json
@@ -0,0 +1,38 @@
+{
+  "components": [
+    {
+      "cachedName": "LWJGL 3",
+      "cachedVersion": "3.2.2",
+      "cachedVolatile": true,
+      "dependencyOnly": true,
+      "uid": "org.lwjgl3",
+      "version": "3.2.2"
+    },
+    {
+      "cachedName": "Minecraft",
+      "cachedRequires": [
+        {
+          "equals": "3.2.2",
+          "suggests": "3.2.2",
+          "uid": "org.lwjgl3"
+        }
+      ],
+      "cachedVersion": "1.18",
+      "important": true,
+      "uid": "net.minecraft",
+      "version": "1.18"
+    },
+    {
+      "cachedName": "OptiFine",
+      "cachedRequires": [
+        {
+          "equals": "1.18",
+          "uid": "net.minecraft"
+        }
+      ],
+      "cachedVersion": "HD Ultra H3",
+      "uid": "optifine.Optifine"
+    }
+  ],
+  "formatVersion": 1
+}
diff --git a/1.18/patches/optifine.Optifine.json b/1.18/patches/optifine.Optifine.json
new file mode 100644
index 0000000..7c6e4e6
--- /dev/null
+++ b/1.18/patches/optifine.Optifine.json
@@ -0,0 +1,26 @@
+{
+  "+tweakers": ["optifine.OptiFineTweaker"],
+  "formatVersion": 1,
+  "+libraries": [
+    {
+      "MMC-filename": "launchwrapper-of-2.3.jar",
+      "MMC-hint": "local",
+      "name": "optifine:launchwrapper-of:2.3"
+    },
+    {
+      "MMC-filename": "OptiFine_1.18_HD_U_H3.jar",
+      "MMC-hint": "local",
+      "name": "optifine:OptiFine:1.18_HD_U_H3"
+    }
+  ],
+  "mainClass": "net.minecraft.launchwrapper.Launch",
+  "name": "OptiFine",
+  "requires": [
+    {
+      "equals": "1.18",
+      "uid": "net.minecraft"
+    }
+  ],
+  "uid": "optifine.Optifine",
+  "version": "HD Ultra H3"
+}