Coincidence is a cooperative game studio created by ex-Zachtronics developers. Zach Barth is no longer teaching high school and is making games again.
Coincidence
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If you're curious about why I keep making tabletop games, you'll probably enjoy listening to this podcast episode! Although, I'm not sure if I actually managed to answer that question...
been playing @coincidence.games' new scratch off puzzle games and really enjoying them! a really smart balance of chance and mitigation
These games are all about negotiating risk: about engaging logically, but then pushing your luck and living with your choices. (Once you scratch, there's no going back).
So I helped build up a little narrative pocket universe for each, in settings and genres where that kind of thinking feels right!
Kaizen: A Factory Story is now available on the itch.io store! In addition to getting DRM-free builds of the game for Windows, Mac, and Linux, you also get a Steam key!
astralogicalgames.itch.io/kaizen-a-fac...
Bonus Puzzle #10 - DESIGNER'S NOTEBOOK
... which is actually not a puzzle, but a set of 12 new puzzles, most of which require you to design a production line able to build one of two different products using conditional inputs and commands. It's challenging!
steamcommunity.com/games/227549...
Bonus puzzle #9 - TOY CASH REGISTER
"Get kids started early on understanding the transactional nature of modern life! This toy cash register includes a light-up display and a working cash drawer. It's all about the Yukichis (Benjamins)!"
store.steampowered.com/app/2275490/...
The Zach Attack! Scratch 'n Solve Puzzle Pack is now available for purchase on the Coincidence store! If you backed the project on Kickstarter, your order either already shipped or will ship tomorrow.
coincidence.games/store/
coincidence.games/zach-attack/
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Bonus puzzle #8 - SLOT CAR TRACK
"Even though it was clear by the late 80s that video game racing would gain popularity over the old hobby of slot cars, someone at Matsuzawa had enough of a soft spot for it to approve the release of this track."
store.steampowered.com/app/2275490/...
Bonus puzzle #7 - DOLLHOUSE KITCHEN
"This kids' kitchen playset originally included real heating elements along with realistic flame and smoke effects, but those features were nixed before it went into production due to safety concerns."
store.steampowered.com/app/2275490/...
Coincidence
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Anna Anne Anthropy
Drew M.M.
The Zach Attack! Scratch 'n Solve Puzzle Pack is now available for purchase on the Coincidence store! If you backed the project on Kickstarter, your order either already shipped or will ship tomorrow.
coincidence.games/store/
coincidence.games/zach-attack/
Coincidence
Only 4.4% of @coincidence.games' Kaizen: A Factory Story players are Golf Champions. thus far. ⛳
Kaizen is an open-ended puzzle automation game from the original Zachtronics team, set in 1980s Japan.
Most people know Zach Barth as the founder of Zachtronics. But we are not most people. Today on the Space-Cast!, Zach talks about his analog designs, including The Lucky Seven, Chemistry Set, and the scratch-off puzzle pack Zach Attack! Listen here: spacebiff.com/2026/02/04/s...
Dan Thurot
Most people know Zach Barth as the founder of Zachtronics, purveyor of digital playthings such as SpaceChem, Opus Magnum, and EXAPUNKS. But we are not most people. Instead, we’re here to spea…
