Zachtronics is back with an ambitious new design-based puzzle game. Take on the role of a Reactor Engineer working for SpaceChem, the leading chemical synthesizer for frontier colonies. Construct elaborate factories to transform raw materials into valuable chemical products!

Retrace the path of the Prime Mover to uncover the story of the Byte of Burden! Prime Mover is an open-ended puzzle game about designing circuit boards.

TIS-100 is an open-ended programming game by Zachtronics, the creators of SpaceChem and Infinifactory, in which you rewrite corrupted code segments to repair the TIS-100 and unlock its secrets. It’s the assembly language programming game you never asked for!

Design, optimize, and reverse-engineer real quantum algorithms in an open-ended Zachlike puzzle game. Solve 500+ optimization challenges, hack player creations, and master quantum logic without coding.

Algo Bot is puzzle game that takes place deep inside the Europa, a pan-galactic colonisation ship, where a recycling mission goes horribly wrong. Use your algorithm special skills to command Algo Bot, a service droid, and help PAL, a cantankerous line manager, to contain the crisis.

Build hardware. Solve puzzles. From the creator of Manufactoria, a new open-ended puzzle game set in Silicon Valley's first startup.

TOK HARDCORE is a logical puzzle in which you need to connect all points with lines.

Automate swarms of office workers to solve puzzles inside your very own parallel computer made of people. A thrilling followup to the award winning Human Resource Machine. Now with more humans!

Great Permutator is a puzzle. Hard and tricky. One in which you will have to build a complex system of conveyors and various devices so that the colored boxes can travel across the factory and arrive at right places and in right order. If you are into clever engineering puzzles, this game is for you.

Infinifactory is a sandbox puzzle game by Zachtronics, the creators of SpaceChem and Infiniminer. Build factories that assemble products for your alien overlords, and try not to die in the process.

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.

MHRD is a hardware design game, in which you design various hardware circuits in a hardware description language. The hardware circuits you design get more complex as you go until you create a fully functional CPU design.