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

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

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

(Through Puzzling Exhibitions)

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

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

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.

SpaceChem is an obscenely addictive, design-based puzzle game about fake science!

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

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

A mind-bending recursive puzzle game about boxes within boxes within boxes within boxes.

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

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

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

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

An open-world puzzle game inspired by The Witness

Defend America from an alternate-universe America using state-of-the-art 1980s military hardware.

Entrancing musical falling block puzzler

Ironclad Tactics is a fast-paced, card-based tactics game set in an alternate history Civil War – with robots!