Virtual Circuit Board is the sandbox drawing-based logic simulator where you can build, program, decorate, and simulate anything from simple monochrome circuits to complex and colorful computers. Play with digital logic in this sandbox-only experience.

Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic. Play alone or with friends, design unique machines, build up layers of complexity, and experience the joy of circuits!

Retro Gadgets is a sandbox where you build, code, and customize gadgets inspired by old-school electronics.

Minesweeper, but you only solve each situation once.

The year is 1997. You used to be a hacker, but now you have the phage. You made a deal: one hack, one dose. There’s nothing left to lose… except your life.

Use the MOLEK-SYNTEZ to create small molecules with various pharmacological effects from the comfort of your small Romanian apartment.

Set in a post-apocalyptic future, The Signal State puts your logic skills to the test with complex puzzles inspired by modular synthesizers. Repair machines, rebuild an abandoned farm, and be part of a revolution that will change the fate of agriculture once and for all.

⚡️Fix electronics 📈manage firm 💻challenge the hacker... ServiceIT is a simulation game where you run a full-service IT company to engage in tasks like diagnosing, repairing equipment, network infiltration, programming, server management while an Anonymous hacker keeps sabotaging it all.

Join the adventure and become the master of the metro in our game, which takes you into the underground world. Overcome challenges on the tracks from the cabin of a historic train. Can you complete the route, transport all passengers, and avoid delays?

Alan's Automaton Workshop is an open-ended programming puzzle game. Start a new business with Alan Turing and his groundbreaking innovation: the Turing Machine. Build unique automatons, and solve all kinds of problems from clients.

Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, and SHENZHEN I/O. Design and build machines that assemble potions, poisons, and more using the alchemical engineer’s most advanced tool: the transmutation engine!

Learn CPU architecture with puzzles