diff --git a/core_commands/commands.go b/core_commands/commands.go
index c823c6b..dc11bee 100644
--- a/core_commands/commands.go
+++ b/core_commands/commands.go
@@ -6,5 +6,6 @@ var Commands = &commands.Graph{
 	Commands: []*commands.Command{
 		test_cmd,
 		reload_cmd,
+		gamemode_cmd,
 	},
 }
diff --git a/core_commands/gamemode.go b/core_commands/gamemode.go
new file mode 100644
index 0000000..22c3c4a
--- /dev/null
+++ b/core_commands/gamemode.go
@@ -0,0 +1,72 @@
+package core_commands
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/dynamitemc/dynamite/server"
+	"github.com/dynamitemc/dynamite/server/commands"
+	p "github.com/dynamitemc/dynamite/server/player"
+)
+
+func pascalify(str string) (res string) {
+	sp := strings.Split(str, " ")
+	for _, w := range sp {
+		spp := strings.Split(w, "")
+		res += strings.ToUpper(spp[0]) + strings.ToLower(strings.Join(spp[1:], ""))
+	}
+	return
+}
+
+var gamemode_cmd = &commands.Command{
+	Name:                "gamemode",
+	RequiredPermissions: []string{"server.command.gamemode"},
+	Arguments: []commands.Argument{
+		{
+			Name:     "mode",
+			ParserID: 39,
+		},
+		{
+			Name:     "player",
+			ParserID: 6,
+			Properties: commands.Properties{
+				Flags: 0x02,
+			},
+		},
+	},
+	Execute: func(ctx commands.CommandContext) {
+		if len(ctx.Arguments) == 0 {
+			ctx.Incomplete()
+			return
+		}
+		gm := p.Gamemode(ctx.Arguments[0])
+		if gm == -1 {
+			ctx.ErrorAt(fmt.Sprintf("Unknown game mode: %s", ctx.Arguments[0]))
+			return
+		}
+		var player *server.PlayerController
+		if len(ctx.Arguments) == 1 {
+			if ctx.IsConsole {
+				ctx.Incomplete()
+				return
+			}
+			player = ctx.Executor.(*server.PlayerController)
+		} else {
+			p, ok := ctx.Executor.(*server.PlayerController).Server.Players[ctx.Arguments[1]]
+			if !ok {
+				ctx.Error("No player was found")
+				return
+			}
+			player = p
+		}
+		if player.GameMode() == byte(gm) {
+			return
+		}
+		player.SetGameMode(byte(gm))
+		msg := fmt.Sprintf("Set %s's game mode to %s Mode", player.Name(), pascalify(ctx.Arguments[0]))
+		if player.UUID == ctx.Executor.(*server.PlayerController).UUID {
+			msg = fmt.Sprintf("Set own game mode to %s Mode", pascalify(ctx.Arguments[0]))
+		}
+		ctx.Reply(msg)
+	},
+}
diff --git a/core_commands/reload.go b/core_commands/reload.go
index 952a863..d5e3015 100644
--- a/core_commands/reload.go
+++ b/core_commands/reload.go
@@ -8,7 +8,7 @@ import (
 var reload_cmd = &commands.Command{
 	Name:                "reload",
 	Aliases:             []string{"rl"},
-	RequiredPermissions: []string{"server.reload"},
+	RequiredPermissions: []string{"server.command.reload"},
 	Execute: func(ctx commands.CommandContext) {
 		srv := ctx.Executor.(*server.PlayerController).Server
 		srv.Reload()
diff --git a/go.mod b/go.mod
index b4fe7d8..1b8d241 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 
 require (
 	github.com/Shopify/go-lua v0.0.0-20221004153744-91867de107cf
-	github.com/aimjel/minecraft v0.0.0-20230913195637-f88fef694bb7
+	github.com/aimjel/minecraft v0.0.0-20230927182639-1fa3dd7aeebc
 	github.com/dop251/goja v0.0.0-20230919151941-fc55792775de
 )
 
diff --git a/go.sum b/go.sum
index 9b92665..460ae7b 100644
--- a/go.sum
+++ b/go.sum
@@ -2,6 +2,12 @@ github.com/Shopify/go-lua v0.0.0-20221004153744-91867de107cf h1:VSUCKpFV0AfYGslg
 github.com/Shopify/go-lua v0.0.0-20221004153744-91867de107cf/go.mod h1:UCCi6u6YA8oXfJ15vEMiMGIaWWfLiOacinBPHxLXtEU=
 github.com/aimjel/minecraft v0.0.0-20230913195637-f88fef694bb7 h1:XPhfvCmyVpja/BJvhZZ20LL3XrBNQsdhCp4SX2Y/woQ=
 github.com/aimjel/minecraft v0.0.0-20230913195637-f88fef694bb7/go.mod h1:/Y9/YBqxNOU7IFInEjDbsCVkdPNYJCPxC26jK+w3Phc=
+github.com/aimjel/minecraft v0.0.0-20230927150952-b10c2a7b1397 h1:vb08EgkegNGu03fxYG2fxmj2F6E4fNrFqY1PGLWr9SM=
+github.com/aimjel/minecraft v0.0.0-20230927150952-b10c2a7b1397/go.mod h1:/Y9/YBqxNOU7IFInEjDbsCVkdPNYJCPxC26jK+w3Phc=
+github.com/aimjel/minecraft v0.0.0-20230927163915-b3907034c0a8 h1:Vl58C0lpKTDgSZJivqU1AynKQXPQ2vR2+72pz1iIFFI=
+github.com/aimjel/minecraft v0.0.0-20230927163915-b3907034c0a8/go.mod h1:/Y9/YBqxNOU7IFInEjDbsCVkdPNYJCPxC26jK+w3Phc=
+github.com/aimjel/minecraft v0.0.0-20230927182639-1fa3dd7aeebc h1:irjh4/oH9vWvkOr8xyQGudFeOYVpuzy9dgDnTkevtvg=
+github.com/aimjel/minecraft v0.0.0-20230927182639-1fa3dd7aeebc/go.mod h1:/Y9/YBqxNOU7IFInEjDbsCVkdPNYJCPxC26jK+w3Phc=
 github.com/chzyer/logex v1.2.0/go.mod h1:9+9sk7u7pGNWYMkh0hdiL++6OeibzJccyQU4p4MedaY=
 github.com/chzyer/readline v1.5.0/go.mod h1:x22KAscuvRqlLoK9CsoYsmxoXZMMFVyOl86cAH8qUic=
 github.com/chzyer/test v0.0.0-20210722231415-061457976a23/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
diff --git a/main.go b/main.go
index a061eb7..0c9b30f 100644
--- a/main.go
+++ b/main.go
@@ -38,6 +38,11 @@ func main() {
 	var cfg server.ServerConfig
 	config.LoadConfig("config.toml", &cfg)
 	log.Debug("Loaded config")
+
+	if !cfg.Online && !util.HasArg("-no_offline_warn") {
+		log.Warn("Offline mode is insecure and you should not use it unless for a private server.")
+	}
+
 	if cfg.Web.Enable {
 		if !util.HasArg("-nogui") {
 			go web.LaunchWebPanel(fmt.Sprintf("%s:%d", cfg.Web.ServerIP, cfg.Web.ServerPort), cfg.Web.Password, &log)
diff --git a/server/commands/commands.go b/server/commands/commands.go
index 699ee59..84feaf2 100644
--- a/server/commands/commands.go
+++ b/server/commands/commands.go
@@ -15,9 +15,11 @@ type CommandContext struct {
 		ClientSettings() player.ClientInformation
 		Position() (x float64, y float64, z float64)
 		Rotation() (yaw float32, pitch float32)
+		HasPermissions(perms []string) bool
 	} `js:"executor"`
 	Arguments   []string `js:"arguments"`
-	FullCommand string
+	FullCommand string   `js:"fullCommand"`
+	IsConsole   bool     `js:"isConsole"`
 }
 
 func (ctx *CommandContext) Reply(content string) {
@@ -28,9 +30,13 @@ func (ctx *CommandContext) Incomplete() {
 	ctx.Reply(fmt.Sprintf("§cUnknown or incomplete command, see below for error\n§7%s§r§c§o<--[HERE]", ctx.FullCommand))
 }
 
-func (ctx *CommandContext) Error(msg string) {
+func (ctx *CommandContext) ErrorAt(msg string) {
 	sp := strings.Split(ctx.FullCommand, " ")
-	ctx.Reply(fmt.Sprintf("§c%s\n§7%s§c§n%s§c§o<--[HERE]", msg, strings.Join(sp[:len(sp)-1], " "), sp[len(sp)-1]))
+	ctx.Reply(fmt.Sprintf("§c%s\n§7%s §c§n%s§c§o<--[HERE]", msg, strings.Join(sp[:len(sp)-1], " "), sp[len(sp)-1]))
+}
+
+func (ctx *CommandContext) Error(msg string) {
+	ctx.Reply("§c" + msg)
 }
 
 const (
@@ -82,6 +88,9 @@ func (graph Graph) Data() *pk.DeclareCommands {
 	commands := graph.Commands
 	rootChildren := []int32{}
 	for _, command := range commands {
+		if command == nil {
+			continue
+		}
 		for _, alias := range command.Aliases {
 			commands = append(commands, &Command{
 				Name:      alias,
@@ -90,13 +99,16 @@ func (graph Graph) Data() *pk.DeclareCommands {
 		}
 	}
 	for _, command := range commands {
+		if command == nil {
+			continue
+		}
 		rootChildren = append(rootChildren, int32(len(packet.Nodes)))
-		parent := len(packet.Nodes)
 		packet.Nodes = append(packet.Nodes, pk.Node{
 			Name:  command.Name,
 			Flags: 1,
 		})
 		for _, argument := range command.Arguments {
+			parent := len(packet.Nodes) - 1
 			packet.Nodes[parent].Children = append(packet.Nodes[parent].Children, int32(len(packet.Nodes)))
 			node := pk.Node{Flags: 2, Name: argument.Name, Properties: argument.Properties, ParserID: argument.ParserID}
 			if argument.SuggestionType != "" {
diff --git a/server/network/handlers/ChatCommand.go b/server/network/handlers/ChatCommand.go
index b0a69ed..dd3ba5a 100644
--- a/server/network/handlers/ChatCommand.go
+++ b/server/network/handlers/ChatCommand.go
@@ -14,6 +14,7 @@ type controller interface {
 	ClientSettings() player.ClientInformation
 	Position() (x float64, y float64, z float64)
 	Rotation() (yaw float32, pitch float32)
+	HasPermissions(perms []string) bool
 }
 
 func ChatCommandPacket(controller controller, graph *commands.Graph, content string) {
@@ -21,6 +22,9 @@ func ChatCommandPacket(controller controller, graph *commands.Graph, content str
 	cmd := args[0]
 	var command *commands.Command
 	for _, c := range graph.Commands {
+		if c == nil {
+			continue
+		}
 		if c.Name == cmd {
 			command = c
 		}
@@ -31,12 +35,12 @@ func ChatCommandPacket(controller controller, graph *commands.Graph, content str
 			}
 		}
 	}
-	if command == nil {
+	if command == nil || !controller.HasPermissions(command.RequiredPermissions) {
 		controller.SystemChatMessage(fmt.Sprintf("§cUnknown or incomplete command, see below for error\n§n%s§r§c§o<--[HERE]", content))
 		return
 	}
 	command.Execute(commands.CommandContext{
-		Arguments:   args,
+		Arguments:   args[1:],
 		Executor:    controller,
 		FullCommand: content,
 	})
diff --git a/server/player_controller.go b/server/player_controller.go
index d583aec..1d9f5c8 100644
--- a/server/player_controller.go
+++ b/server/player_controller.go
@@ -1,8 +1,6 @@
 package server
 
 import (
-	"slices"
-
 	"github.com/aimjel/minecraft/packet"
 	"github.com/dynamitemc/dynamite/server/commands"
 	"github.com/dynamitemc/dynamite/server/player"
@@ -17,9 +15,13 @@ type PlayerController struct {
 	UUID string
 }
 
+func (p *PlayerController) Name() string {
+	return p.session.conn.Info.Name
+}
+
 func (p *PlayerController) JoinDimension(d *world.Dimension) error {
 	if err := p.session.SendPacket(&packet.JoinGame{
-		EntityID:           p.player.EntityID, //TODO
+		EntityID:           p.player.EntityID,
 		IsHardcore:         p.player.IsHardcore(),
 		GameMode:           p.player.GameMode(),
 		PreviousGameMode:   p.player.PreviousGameMode(),
@@ -61,8 +63,10 @@ func (p *PlayerController) GameMode() byte {
 }
 
 func (p *PlayerController) SetGameMode(gm byte) {
-	// TO BE IMPLEMENTED
-	//p.session.SendPacket()
+	p.session.SendPacket(&packet.GameEvent{
+		Event: 3,
+		Value: float32(gm),
+	})
 }
 
 func (p *PlayerController) Teleport(x, y, z float64, yaw, pitch float32) {
@@ -80,7 +84,8 @@ func (p *PlayerController) Teleport(x, y, z float64, yaw, pitch float32) {
 func (p *PlayerController) SendCommands(graph *commands.Graph) {
 	for i, command := range graph.Commands {
 		if !p.HasPermissions(command.RequiredPermissions) {
-			graph.Commands = slices.Delete(graph.Commands, i, i+1)
+			//graph.Commands = slices.Delete(graph.Commands, i-1, i)
+			graph.Commands[i] = nil
 		}
 	}
 	p.session.SendPacket(graph.Data())
diff --git a/server/plugins/plugins-lua.go b/server/plugins/plugins-lua.go
index 0471ca5..c978142 100644
--- a/server/plugins/plugins-lua.go
+++ b/server/plugins/plugins-lua.go
@@ -1,7 +1,6 @@
 package plugins
 
 import (
-	"fmt"
 	"os"
 	"slices"
 
@@ -190,7 +189,6 @@ func GetLuaVM(srv interface {
 	l.SetGlobal("server")
 
 	luaCreateGlobalFunction(l, "Plugin", func(state *lua.State) int {
-		fmt.Println("h")
 		if state.IsTable(1) {
 			l.Field(1, "identifier")
 			identifier, ok := l.ToString(-1)
diff --git a/server/server.go b/server/server.go
index 99d7420..17c06fa 100644
--- a/server/server.go
+++ b/server/server.go
@@ -8,6 +8,7 @@ import (
 	"github.com/google/uuid"
 
 	"github.com/aimjel/minecraft"
+
 	//"github.com/dynamitemc/dynamite/web"
 	"github.com/dynamitemc/dynamite/logger"
 	"github.com/dynamitemc/dynamite/server/commands"
@@ -80,10 +81,9 @@ func (srv *Server) handleNewConn(conn *minecraft.Conn) {
 
 	srv.addPlayer(cntrl)
 	if err := sesh.HandlePackets(cntrl); err != nil {
-		u := cntrl.UUID
-
-		srv.Logger.Info("[%s] Player %s (%s) has left the server", conn.RemoteAddr().String(), conn.Info.Name, u)
+		srv.Logger.Info("[%s] Player %s (%s) has left the server", conn.RemoteAddr().String(), conn.Info.Name, cntrl.UUID)
 		srv.PlayerlistRemove(conn.Info.UUID)
+		delete(srv.Players, cntrl.UUID)
 		//gui.RemovePlayer(cntrl.UUID)
 	}
 }
diff --git a/server/world/world.go b/server/world/world.go
index 59cef24..fb5f482 100644
--- a/server/world/world.go
+++ b/server/world/world.go
@@ -15,7 +15,7 @@ type worldData struct {
 			Seed int64 `nbt:"seed"`
 		}
 		DataVersion int32
-		GameRules   map[string]string
+		GameRules   map[string]interface{}
 	}
 }