Zachtronics

The Zachtronics Solitaire Collection

The Zachtronics Solitaire Collection is here! Inside you will find all seven Zachtronics solitaire games, updated with new 4K graphics, plus one brand new Tarot-themed solitaire variant only available here.

Last Call BBS

The Barkeep’s loaded up his retro computer with a full set of puzzle games for you to download and play. No need to worry about copy protection, they’re all fully cracked and ready to enjoy!

NERTS! Online

NERTS! Online is a fast-paced competitive solitaire game for you and up to five of your friends, played the same way we play it at the Zachtronics office!

Möbius Front '83

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

MOLEK-SYNTEZ

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

Eliza

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

EXAPUNKS

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.

Opus Magnum

Master the intricate, physical machinery of the transmutation engine— the alchemical engineer’s most advanced tool— and use it to create vital remedies, precious gemstones, deadly weapons, and more.

SHENZHEN I/O

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

TIS-100

TIS-100 is an open-ended programming game 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!

Infinifactory

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

Ironclad Tactics

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

SpaceChem

SpaceChem is an obscenely addictive, design-based puzzle game about building machines and fighting monsters in the name of science!

ZACH-LIKE

ZACH-LIKE is a book of behind-the-scenes design documents from Zachtronics. Although we're sold out of physical copies, a free digital version is available as a PDF.

Zachademics

All Zachtronics games are free for public schools and school-like non-profit organizations.

Podcast

On the Zachtronics podcast we go behind the scenes of how indie games are made and interview other game developers.

Episode List

Listen on iTunes