Garry's Mod AlternativesOnly apps categorised as Game Development Tools

The best Game Development alternative to Garry's Mod is Roblox, which is free. If that doesn't suit you, our users have ranked more than 25 alternatives to Garry's Mod and three of them are Game Development Tools so hopefully you can find a suitable replacement. Other interesting Game Development Tool alternatives to Garry's Mod are nanos world and Core Games.

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Most Garry's Mod alternatives are Game Development Tools, but you can also narrow the list to Sandbox Games or Crafting Games. Other popular filters are Android Tablet, Free, Android, iPad and Sandbox Games.

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Garry's Mod alternatives page was last updated Apr 28, 2025

Roblox
99 likes
Online platform for user-generated 3D game development and world building, customizable avatars, multiplayer experiences, trading, virtual currency, content sharing, achievements, collaborative projects, safe moderation, and a wide variety of games for all ages.
61 Roblox alternatives
Cost / License
Freemium
Proprietary
Application typeApplication types
Sandbox Game
Crafting Game
Origin
United States
Platforms
Mac
Windows
Online
Android
iPhone
Chrome OS
Android Tablet
iPad
HTC Vive
Kindle Fire
Playstation
Xbox
Meta Quest
Samsung Galaxy Store
United States
+2
Good alternative?Is Roblox a good alternative to Garry's Mod?

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5comments
Roblox vs Garry's Mod Comments
Top Positive Comment by Guest · Feb 14, 2019
it is good becasue it have 3d features and its so much fun to play roblox
Top Negative Comment by shaneo · Jan 31, 2016
Roblox is more web based, cannot choose server, bc, etc.
Comment by northhypper · Aug 24, 2024
Garry's Mod runs better than roblox
3 of 5 comments
Roblox is Freemium and ProprietaryGarry's Mod is Paid and Proprietary
nanos world
5 likes
Play in unique, community-made game modes, create custom addons with Lua, and import assets from Unreal Engine 5. Host your own server and enjoy endless gaming possibilities with friends!
Cost / License
Free
Proprietary
Application typeApplication types
Game Development
Sandbox Game
Platforms
Mac
Windows
Linux
Steam
Good alternative?Is nanos world a good alternative to Garry's Mod?

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2comments
nanos world vs Garry's Mod Comments
Positive comment by Shak · Feb 13, 2023
nanos world is a worthy successor of Garry's Mod!
Negative comment by HAK3R4LIFE · Apr 28, 2025
unreal engine 5 was so bad, we still use unreal 4.
2 of 2 comments
nanos world is Free and ProprietaryGarry's Mod is Paid and Proprietary
nanos world is a Game Development Garry's Mod is a Sandbox Game
Core Games
7 likes
Core is an endless universe of games and worlds designed by a global community of creators. It's a radically accessible game construction kit, content exchange, and game-playing platform, all in one.
Cost / License
Free
Proprietary
Origin
United States
Platforms
Windows
Online
United States
Good alternative?Is Core Games a good alternative to Garry's Mod?

3 of 3 Garry's Mod alternatives