Roblox - Reimagining the way people come together.

Rail Nation - Become a logistics tycoon in this fascinating railroad strategy game.

Blockland - Blockland is a non-competitive multiplayer sandbox-style construction game. It's kind of like playing with legos on the internet.

RollerCoaster Tycoon Classic - Create and run amazing parks on your iPhone or Android.

Garry’s Mod - Garry’s Mod is Funny, Sandbox, Co-op, Building, FPS, Action, Single and Multiplayer video game created by Facepunch and published by Valve.

OpenTTD - An open-source clone of the classic game ...