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What you are about to do has not been approved by the Vatican.

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

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

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

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

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

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

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