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Chisel through a layer cake of thousand-year-old civilizations.

Build factories that assemble products for your alien overlords, and try not to die in the process.

It’s the assembly language programming game you never asked for!

All seven Zachtronics solitaire games, updated with new 4K graphics, plus one brand new Tarot-themed solitaire variant.

A puzzle roguelike in hyperbolic plane

Fighting against fortune would be a lot easier if you weren't a walking dice.

Master the intricate, physical machinery of the transmutation engine— the alchemical engineer’s most advanced tool!

a little exploration game about hiking up a mountain

Brave hundreds of hand-crafted challenges as you help Madeline survive her journey to the top of Celeste Mountain!

Boot up your Z5 Powerlance and dial into Last Call BBS, the last game from Zachtronics!

A difficult puzzle game about plumbing.

At the end of everything, hold onto anything.

A visual novel about an AI counseling program, the people who develop it, and the people who use it.

Remember: Losing is fun!

The automation tower defense game

An online and local party game of teamwork and betrayal for 4-15 players

A puzzle game about planning the train route for the world's most awkward space colony

Use the MOLEK-SYNTEZ to create small molecules with various pharmacological effects.

SHENZHEN I/O: BUILD CIRCUITS. WRITE CODE. RTFM.

A puzzle game where you change the rules. Also award-winning!

​The year is 1997. You used to be a hacker, but now you have the phage.