diff --git a/changelog.md b/changelog.md
new file mode 100644
index 0000000..bccc8a9
--- /dev/null
+++ b/changelog.md
@@ -0,0 +1,8 @@
+# Changelog
+
+## 0.1
+- Added `/gm <gamemode>` for changing gamemode.
+- Added `/gm{0|s|survival}` for changing gamemode to Survival.
+- Added `/gm{1|c|creative}` for changing gamemode to Creative.
+- Added `/gm{2|a|adventure}` for changing gamemode to Adventure.
+- Added `/gm{3|sp|spectator}` for changing gamemode to Spectator.
diff --git a/gradle.properties b/gradle.properties
index d239f3f..65af146 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -8,10 +8,10 @@ org.gradle.jvmargs=-Xmx1G
 	loader_version=0.11.3
 
 # Mod Properties
-	mod_version = 1.0.0
-	maven_group = com.example
-	archives_base_name = fabric-example-mod
+	mod_version = 0.1
+	maven_group = com.nixinova
+	archives_base_name = morecmds
 
 # Dependencies
-	# currently not on the main fabric site, check on the maven: https://maven.fabricmc.net/net/fabricmc/fabric-api/fabric-api (or https://fabricmc.net/versions.html)
+	# Info: https://maven.fabricmc.net/net/fabricmc/fabric-api/fabric-api (or https://fabricmc.net/versions.html)
 	fabric_version=0.34.2+1.16
diff --git a/readme.md b/readme.md
index 93ab3a6..5a47d91 100644
--- a/readme.md
+++ b/readme.md
@@ -1,3 +1,10 @@
 # More Commands Mod
 
 Adds various useful commands to the game.
+
+## Commands
+- `/gm <gamemode>`: Change gamemode.
+- `/gms` & `/gm0`: Change gamemode to Survival.
+- `/gmc` & `/gm1`: Change gamemode to Creative.
+- `/gma` & `/gm2`: Change gamemode to Adventure.
+- `/gmsp` & `/gm3`: Change gamemode to Spectator.
diff --git a/src/main/java/com/nixinova/morecmds/Main.java b/src/main/java/com/nixinova/morecmds/Main.java
index b6cf35f..94c69f3 100644
--- a/src/main/java/com/nixinova/morecmds/Main.java
+++ b/src/main/java/com/nixinova/morecmds/Main.java
@@ -1,10 +1,18 @@
 package com.nixinova.morecmds;
 
+import com.nixinova.morecmds.commands.Gamemode;
+
 import net.fabricmc.api.ModInitializer;
 
 public class Main implements ModInitializer {
+
 	@Override
 	public void onInitialize() {
-		System.out.println("Initialised");
+		new Gamemode().register();
 	}
+
+	public static void debug(String msg) {
+		System.out.println("MoreCMDs> " + msg);
+	}
+
 }
diff --git a/src/main/java/com/nixinova/morecmds/commands/Gamemode.java b/src/main/java/com/nixinova/morecmds/commands/Gamemode.java
new file mode 100644
index 0000000..bb54f20
--- /dev/null
+++ b/src/main/java/com/nixinova/morecmds/commands/Gamemode.java
@@ -0,0 +1,78 @@
+package com.nixinova.morecmds.commands;
+
+import static net.minecraft.server.command.CommandManager.argument;
+import static net.minecraft.server.command.CommandManager.literal;
+import static com.mojang.brigadier.arguments.StringArgumentType.string;
+
+import com.mojang.brigadier.arguments.StringArgumentType;
+import com.mojang.brigadier.context.CommandContext;
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import com.nixinova.morecmds.Main;
+
+import net.fabricmc.fabric.api.command.v1.CommandRegistrationCallback;
+import net.minecraft.server.command.ServerCommandSource;
+import net.minecraft.world.GameMode;
+
+public class Gamemode {
+
+	public void register() {
+		CommandRegistrationCallback.EVENT.register((dispatcher, dedicated) -> {
+			// Generic
+			dispatcher.register(literal("gm").then(
+				argument("mode", string()).executes(this::generic)
+			));
+			// Survival
+			dispatcher.register(literal("gms").executes(this::survival));
+			dispatcher.register(literal("gm0").executes(this::survival));
+			// Creative
+			dispatcher.register(literal("gmc").executes(this::creative));
+			dispatcher.register(literal("gm1").executes(this::creative));
+			// Adventure
+			dispatcher.register(literal("gma").executes(this::adventure));
+			dispatcher.register(literal("gm2").executes(this::adventure));
+			// Spectator
+			dispatcher.register(literal("gmsp").executes(this::spectator));
+			dispatcher.register(literal("gm3").executes(this::spectator));
+		});
+	}
+
+	private int generic(CommandContext<ServerCommandSource> context) throws CommandSyntaxException {
+		Main.debug("Command 'gm' activated");
+		String input = StringArgumentType.getString(context, "mode");
+		GameMode mode = null;
+		switch (input.toLowerCase()) {
+			case "survival": case "s": case "0": mode = GameMode.SURVIVAL; break;
+			case "creative": case "c": case "1": mode = GameMode.CREATIVE; break;
+			case "adventure": case "a": case "2": mode = GameMode.ADVENTURE; break;
+			case "spectator": case "sp": case "3": mode = GameMode.SPECTATOR; break;
+		}
+		if (mode == null) return -1;
+		context.getSource().getPlayer().setGameMode(mode);
+		return 1;
+	}
+
+	private int survival(CommandContext<ServerCommandSource> context) throws CommandSyntaxException {
+		Main.debug("Command 'gms' activated");
+		context.getSource().getPlayer().setGameMode(GameMode.SURVIVAL);
+		return 1;
+	}
+
+	private int creative(CommandContext<ServerCommandSource> context) throws CommandSyntaxException {
+		Main.debug("Command 'gmc' activated");
+		context.getSource().getPlayer().setGameMode(GameMode.CREATIVE);
+		return 1;
+	}
+
+	private int adventure(CommandContext<ServerCommandSource> context) throws CommandSyntaxException {
+		Main.debug("Command 'gma' activated");
+		context.getSource().getPlayer().setGameMode(GameMode.ADVENTURE);
+		return 1;
+	}
+
+	private int spectator(CommandContext<ServerCommandSource> context) throws CommandSyntaxException {
+		Main.debug("Command 'gmsp' activated");
+		context.getSource().getPlayer().setGameMode(GameMode.SPECTATOR);
+		return 1;
+	}
+
+}