Minecraft - A block-building game that allows you to create and explore entire worlds from scratch.
Rigonauts - Engient Inc.
Terraria - Dig, Fight, Build! The very world is at your fingertips as you fight for survival, fortune, and glory.
Crazy Machines Elements - Crazy Machines Elements is another installment of the multi-award-winning video game series which allows the player to create a crazy machine by combining numbers of items.
Minetest - Minetest is a near-infinite-world block sandbox game and a game engine, inspired by InfiniMiner...
The Incredible Machine - The Incredible Machine is a Physics-based Puzzle and Single-player video game Kevin Ryan and published by Dynamix.