
The Zachtronics Solitaire Collection
Eight solitaire games, each with its own rules and personality: a mahjong-tile deck, alchemical glass beads, a Tarot deck that reads your fortune…
If you like figuring out systems piece by piece, these Zachtronics games let you tinker with machines, cards, and code across 16 releases.
If you enjoy solving problems by building your own answers, you will feel at home in these 16 games from Zachtronics. Opus Magnum has you arranging arms and parts on a grid to turn simple atoms into finished products, while SHENZHEN I/O has you wiring components and writing short programs to make devices work. Last Call BBS changes pace with a mixed set of small challenges you can swap between when stuck, alongside card games, tactical battles and story-led detours.

Eight solitaire games, each with its own rules and personality: a mahjong-tile deck, alchemical glass beads, a Tarot deck that reads your fortune…

Log into a 90s bulletin board and fill it with factories, circuits, dungeons and card games, one download at a time.

Race up to five rivals to clear your pile first, playing cards onto shared foundations faster than anyone else can.

Defend America from an alternate-universe America using state-of-the-art 1980s military hardware in this intricate and tactical turn-based strategy…

You are Evelyn, a burned-out engineer back after three years away, working as the human mouthpiece for Eliza, an AI counseling app.

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

Write little programs that slip into networks, do the job and get out, one puzzle at a time.

ZACH-LIKE is a book of behind-the-scenes design documents from Zachtronics.

Program alchemical arms on a hex grid and build machines that work any way you like.

Design electronics on a budget, write the assembly to run them, and unwind with a round of solitaire when the specs bite back.

NO ENGINEERING, ALL PROCRASTINATION! SHENZHEN SOLITAIRE is a brand-new solitaire variant originally developed for SHENZHEN I/O, and is now available…

A broken computer from the 1980s lands on your desk, and the only way to fix it is to write assembly code by hand.

Design conveyor belt assembly lines that weld, sort and ship products, solving open-ended 3D puzzles at your own pace.

A puzzle game about building chemical factories from little instruction tracks and a pair of robotic arms called waldos.

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

The Redshift is a fictional handheld game console in the universe of the puzzle programming game EXAPUNKS.

Eight solitaire games, each with its own rules and personality: a mahjong-tile deck, alchemical glass beads, a Tarot deck that reads your fortune…

Log into a 90s bulletin board and fill it with factories, circuits, dungeons and card games, one download at a time.

Race up to five rivals to clear your pile first, playing cards onto shared foundations faster than anyone else can.

Defend America from an alternate-universe America using state-of-the-art 1980s military hardware in this intricate and tactical turn-based strategy…

You are Evelyn, a burned-out engineer back after three years away, working as the human mouthpiece for Eliza, an AI counseling app.

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

Write little programs that slip into networks, do the job and get out, one puzzle at a time.

ZACH-LIKE is a book of behind-the-scenes design documents from Zachtronics.

Program alchemical arms on a hex grid and build machines that work any way you like.

Design electronics on a budget, write the assembly to run them, and unwind with a round of solitaire when the specs bite back.

NO ENGINEERING, ALL PROCRASTINATION! SHENZHEN SOLITAIRE is a brand-new solitaire variant originally developed for SHENZHEN I/O, and is now available…

A broken computer from the 1980s lands on your desk, and the only way to fix it is to write assembly code by hand.