Gmod Sandbox

Game description:

The idea of SandBox version of Garry’s Mod is simple: you need to build mechanisms of all possible kinds and put them together to see how they cooperate. This sounds pretty plain, but you will change your mind, once a gigantic arsenal of fantastic instruments with various properties and characteristics appear in your hands. You are not limited anyhow, so you can create anything! The objects that don’t exist in the real world are also possible. Do it now and see how far your fantasy can lead you!