Sandbox
See what the world lets you do.
Independent open-source sandboxes make room for unhurried exploration and experimentation. Follow the official play link and check the hardware recommendations, especially for three-dimensional browser worlds.
11 sandbox games to explore
Independent curation, with source code and play requirements.
Sandbox
Experiment with a cartoon ragdoll and a collection of physics contraptions.
On GitHub since Sep 2026
Sandbox
Wander a sunrise-lit beach, borrow a car, and explore a peaceful coastal sandbox.
On GitHub since Sep 2026
KindergrimmOpen-source gameKindergrimm
171Explore a world populated by procedurally drawn doodle characters.
On GitHub since Aug 2026
Sandbox
Mine procedural planets, build spaceships, and establish bases alone or with friends.
On GitHub since May 2026
MoonsboxOpen-source game
CubyzOpen-source game
Terasology
3.9kExplore and modify a voxel world built around an extensible collection of gameplay modules.
On GitHub since Mar 2011
The Powder ToyOpen-source gameThe Powder Toy
5.4kExperiment with falling particles, heat, air pressure, and electrical systems.
On GitHub since Jul 2010
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