Terraria - Dig, Fight, Build! The very world is at your fingertips as you fight for survival, fortune, and glory.
Blockland - Blockland is a non-competitive multiplayer sandbox-style construction game. It's kind of like playing with legos on the internet.
Minecraft - A block-building game that allows you to create and explore entire worlds from scratch.
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.
SurvivalCraft - SurvivalCraft is a mobile action and adventure game that is based on the wildly popular Minecraft platform.
Roblox - Reimagining the way people come together.