Terraria - Dig, Fight, Build! The very world is at your fingertips as you fight for survival, fortune, and glory.
Roblox - Reimagining the way people come together.
Brick Planet - Play and build amazing games
SimPhy - Interactive 2D & 3D Physics simulation software
Woodcutter Simulator 2013 - Woodcutter Simulator 2013 is an Open-World, Single and Multiplayer Simulation developed and published by United Independent Entertainment GmbH.
Physion - Physics Simulation Sandbox