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Coincidence

@coincidence.games

Coincidence is a cooperative game studio created by ex-Zachtronics developers. Zach Barth is no longer teaching high school and is making games again.

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Latest posts by Coincidence @coincidence.games

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Only 4.4% of @coincidence.games' Kaizen: A Factory Story players are Golf Champions. thus far. โ›ณ

20.02.2026 17:36 ๐Ÿ‘ 11 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

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...

05.02.2026 07:47 ๐Ÿ‘ 26 ๐Ÿ” 6 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

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!

07.01.2026 15:46 ๐Ÿ‘ 12 ๐Ÿ” 1 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
Stack of scratched off scratch-off puzzle games, with the coin that scratched them off.

Stack of scratched off scratch-off puzzle games, with the coin that scratched them off.

Box for "The Zach Attack! Scratch 'n Solve Puzzle Pack." The box art features dragons, demons, robots and an investment banker with an automatic rifle.

Box for "The Zach Attack! Scratch 'n Solve Puzzle Pack." The box art features dragons, demons, robots and an investment banker with an automatic rifle.

been playing @coincidence.games' new scratch off puzzle games and really enjoying them! a really smart balance of chance and mitigation

04.01.2026 18:37 ๐Ÿ‘ 12 ๐Ÿ” 2 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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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/

28.12.2025 20:41 ๐Ÿ‘ 18 ๐Ÿ” 2 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 3
Preview
Kaizen: A Factory Story by Astra Logical Kaizen is an open-ended puzzle automation game from the original Zachtronics team, set in 1980s Japan.

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...

03.10.2025 20:00 ๐Ÿ‘ 32 ๐Ÿ” 6 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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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...

22.09.2025 18:48 ๐Ÿ‘ 26 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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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/...

15.09.2025 18:41 ๐Ÿ‘ 16 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

If you restart Steam this should be fixed now!

12.09.2025 22:10 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Hah, I will take a look at this today!

12.09.2025 16:58 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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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/...

08.09.2025 18:52 ๐Ÿ‘ 24 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

We are working on a fix for this!

03.09.2025 00:15 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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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/...

01.09.2025 20:26 ๐Ÿ‘ 15 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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From the AMA community on Reddit: I'm Zach Barth, a game developer at Coincidence. We just released Kaizen: A Factory Story, but before that we made a bunch of games at Zachtronics. AMA! Explore this post and more from the AMA community

Our AMA on Reddit is live right now! Join us to talk about our games, Coincidence, Zachtronics, game design, pachinko, or anything else you want an answer to!

www.reddit.com/r/AMA/commen...

29.08.2025 18:04 ๐Ÿ‘ 29 ๐Ÿ” 10 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

We're going to be doing an AMA tomorrow (08/29/25) on Reddit (/r/IAMA) starting at 10AM PT. Join us to talk about Kaizen: A Factory Story, Coincidence, or anything else we've worked on here or at Zachtronics!

28.08.2025 22:34 ๐Ÿ‘ 11 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Draknek & Friends Official Podcast Join Alan and Syrenne from Draknek & Friends as they talk to developers of some of their favorite puzzle games, shedding light onto how games get made and th...

Draknek & Friends Official Podcast Episode 35 featuring Zach Barth from @coincidence.games is out now! Topics include the development of Kaizen, making accessible Zach-likes, and systems design.
draknek.org/podcast

28.08.2025 16:06 ๐Ÿ‘ 13 ๐Ÿ” 8 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Bonus puzzle #6 - BOOMBOX

"Bring the beats with Matsuzawa's biggest boom box to date! The whopping twelve D batteries it requires will definitely set you back some cash, but the volume that enables will guarantee you never lose another boom box battle!"

store.steampowered.com/app/2275490/...

25.08.2025 20:43 ๐Ÿ‘ 18 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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This puzzle was inspired by a real 1980s chess computer that I found at a thrift store while we were working on Kaizen. Even on the absolute easiest difficulty, none of us were able to beat it...

UNTIL TODAY! What a coincidence! Good work, Jay!

18.08.2025 20:29 ๐Ÿ‘ 24 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Bonus puzzle #5 - CHESS COMPUTER

"The Matsuzawa ENDGAME was an entry-level chess computer intended to introduce children and neophytes to the world of chess. But sales faced headwinds because nobody could beat it, even when set to the lowest difficulty."

store.steampowered.com/app/2275490/...

18.08.2025 20:29 ๐Ÿ‘ 19 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

We can neither confirm nor deny the appearance of the Matsuzawa Grendel MaxTar on the Kaizen OST.

12.08.2025 21:20 ๐Ÿ‘ 7 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Bonus puzzle #4 - ELECTRIC GUITAR!

"Combining the best of analog and digital into a single instrument, the Matsuzawa Grendel MaxTar included a built-in amplifier and effects unit. Plans to add oscillators and a step sequencer were shelved, however."

store.steampowered.com/app/2275490/...

12.08.2025 18:03 ๐Ÿ‘ 14 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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Kaizen: A Factory Story Original Soundtrack, by Matthew S. Burns, Sam Kulchin, Drew Messinger-Michaels 20 track album

The original soundtrack to Kaizen: A Factory Story, by me, Sam Kulchin, and @drewmm.com is out now on Bandcamp and coming to streaming services soon! coincidencegames.bandcamp.com/album/kaizen...

04.08.2025 18:40 ๐Ÿ‘ 87 ๐Ÿ” 25 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2
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Bonus puzzle #3 - ARCHERY TARGET!

"After an unsuccessful foray into developing new building materials, the Matsuzawa team realized its wood fiber composite was perfect for use in archery targets and dart boards. Thus, the sporting goods division was born!"

store.steampowered.com/app/2275490/...

04.08.2025 18:16 ๐Ÿ‘ 16 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Bonus puzzle #2 - SYNTHESIZER!

"The battery-powered Matsuzawa Grendel let keyboard players jam with the music anywhere, anytime. It was praised for its eight realistic built-in voices and four-note polyphony, but some criticized the small number of keys."

store.steampowered.com/app/2275490/...

29.07.2025 00:40 ๐Ÿ‘ 20 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

Yeah, they're in a chapter at the end of the campaign sequence.

22.07.2025 16:58 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Weekly bonus puzzle #1 - SUPER DEFENDER BOT!

"Taking note of Defender Bot's popularity, Matsuzawa released the Super Defender Bot in 1987. It added shoulder-mounted cannons and button-activated sound effects, testing the patience of parents across the world!"

store.steampowered.com/app/2275490/...

21.07.2025 22:31 ๐Ÿ‘ 29 ๐Ÿ” 2 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

When I was working on ChipWizardโ„ข Professional in Last Call BBS, I made that the metric because that's what made sense for integrated circuits. As I tested those puzzles, I realized I really liked it; even if a puzzle requires a minimum set of tools, you can still noodle on how to pack them in.

21.07.2025 06:04 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

I had the privilege of leading the localization team on this project!

David's story resonated so deeply with my own and I'm glad I got to be a part of bringing it to other languages, especially Japanese. Our team worked particularly hard to make sure the dialogue was period-accurate. Go play it!

15.07.2025 01:22 ๐Ÿ‘ 53 ๐Ÿ” 8 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

I'm trying to make as many solitaire games as possible so that we can get a new collection going, just give me a few years!

14.07.2025 23:32 ๐Ÿ‘ 10 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
"Kaizen: A Factory Story" is a excellent Zach-like from the devs who know the genre best Familiar Zachtronics-style gameplay feels great in 1980s Japan.

๐ŸŽฎ๐Ÿ•น๏ธ There's a new (almost) #Zachtronics game out! It's "Kaizen: A Factory Story", the latest from @coincidence.games.

It's the puzzle gameplay you know and love tied up in a great 1980s Japan setting. I had a blast with it!

Check out my full review:

david.reviews/articles/kai...

14.07.2025 17:14 ๐Ÿ‘ 18 ๐Ÿ” 6 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1