Minetest - Minetest is a near-infinite-world block sandbox game and a game engine, inspired by InfiniMiner...
The Powder Toy - The Powder Toy is a desktop version of the classic 'falling sand' physics sandbox game, it simulates air pressure and velocity as well as heat!
Roblox - Reimagining the way people come together.
Powder Game - When whirlwind picks up the leaves, flow of the wind is visible and interesting. Simulation game that reproduces such phenomenon with powder (dot)! Let's vote by playing various uploaded works.
Terraria - Dig, Fight, Build! The very world is at your fingertips as you fight for survival, fortune, and glory.
sandspiel - Welcome, and thanks for coming by! I hope that you enjoy exploring this small game, and it brings you some calm. Growing up, "falling sand" games like this one provided me hours of entertainment and imagination.