Sandspiel

Sandspiel is a falling sand physics simulator. It is creative toy where players can place elements (like sand, water, fire, plants, etc.) and watch them interact according to simulated physics rules. The game lets you paint with elements and observe surprisingly complex chain reactions: water flows and pools, fire spreads and consumes, plants grow and creep, sand piles up. It's a sandbox for experimentation with no goals beyond play and discovery. Sandspiel embodies constructivist principles — giving you tools to explore and discover rather than explicit objectives to complete, and facilitates calm reflection and healing.