Kaizen: A Factory Story
Playing now
32−7 vs. yesterday
4.4%of peak
All-time peak
732Jul 2025
Playing now
32−7 vs. yesterday
All-time peak
732Jul 2025
| Published | Kind | Announcement | Build |
|---|---|---|---|
| Game update | UPDATE: New achievement Today's update adds a new achievement for solving every puzzle in the game. | 20485471 | |
| Game update | UPDATE: Variants tutorial fixes Today's update localizes the variants tutorial images and fixes a bug where the variants tutorial was not automatically opened when opening a puzzle using that mechanic. | 20082655 | |
| Major update | Bonus Puzzle #10: Designer's Notebook Today's update adds our final weekly bonus puzzle, the DESIGNER'S NOTEBOOK, which is actually not a puzzle but a collection of TWELVE new puzzles based on existing puzzles. What? During development, I had originally imagined that about 1/3 of the puzzles in the game would be variant puzzles , which required the player to conditionally build one of two different products, in the spirit of the ju… | 20067717 | |
| In-game event | Bonus Puzzle #9: Toy Cash Register Today's update adds a new weekly bonus puzzle, the 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 drawers to enable buying, selling, and giving change. It's all about the Yukichis (Benjamins)!" | 19988977 | |
| Game update | UPDATE: Puzzle story portrait fixes Today's update fixes some puzzle story portraits in chapter 5 that didn't match the primary art. | 19963867 | |
| Game update | UPDATE: Slot car track symmetry fix Today's update fixes a small bug in the "slot car track" puzzle where the front of the "jump" part was incorrectly tagged as rotationally symmetric. Histograms and leaderboards for the puzzle have been reset. | 19916904 | |
| In-game event | Bonus Puzzle #8: Slot Car Track Today's update adds a new weekly bonus puzzle, the 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 apparently had enough of a soft spot for it to approve the release of this entry level track." | 19901092 | |
| Game update | UPDATE: Dollhouse kitchen art fix Today's update fixes the art for the "dollhouse kitchen" bonus puzzle to be less ambiguous. | 19832771 | |
| In-game event | Bonus Puzzle #7: Dollhouse Kitchen Today's update adds a new weekly bonus puzzle, the 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. Nevertheless, the product was a hit!" This is one of my favorite puzzles that I've made for the game so far. It's quite challe… | 19816385 | |
| In-game event | Bonus Puzzle #6: Boombox Today's update adds a new weekly bonus puzzle, the 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!" | 19729214 | |
| Game update | UPDATE: Cut/copy/paste for instructions Today's update adds keyboard shortcuts to cut (Ctrl+X), copy (Ctrl+C), and paste (Ctrl+V) instructions. | 19674893 | |
| In-game event | Bonus Puzzle #5: Chess Computer Today's update adds a new weekly bonus puzzle, the 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." | 19644151 | |
| Game update | UPDATE: File format changes Today's update contains some small file format changes to support a future update. Nothing fun, unfortunately. | 19618696 | |
| Game update | UPDATE: Bidet seat acceptance bug Today's update fixes a minor issue where some solutions for the "bidet seat" puzzle were not accepted. | 19604200 | |
| In-game event | Bonus Puzzle #4: Electric Guitar Today's update adds a new weekly bonus puzzle, the 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 fully functional step sequencer were shelved, however." | 19572451 | |
| In-game event | Bonus Puzzle #3: Archery Target Today's update adds a new weekly bonus puzzle, the 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!" | 19473497 | |
| Game update | UPDATE: Rather glaring simulation bug fix Today's update fixes a bug where you could move products through tools (?!) under certain circumstances. | 19403041 | |
| In-game event | Bonus Puzzle #2: Synthesizer Today's update adds a new weekly bonus puzzle, the 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." This update also includes a small improvement to the output comparison tool where remnants will now be highl… | 19389759 | |
| Game update | UPDATE: Output comparison tool Today's update adds an experimental "compare" button to the zoomed-in output preview window that, when held, shows all the mistakes in your output product. It hasn't been thoroughly tested, so let us know if you see anything strange! | 19364264 | |
| Game update | UPDATE: Bug fixes Today's update includes the following changes: · Fixed a bug where errors would sometimes be incorrectly detected when quickly sliding products together. · Fixed a bug where costs could be incorrectly calculated when switching between solutions. · Fixed a regression in drill debris animations caused by the last update. | 19351336 | |
| Game update | UPDATE: Hotkey previews, improved videos, solitaire tweaks Today's update includes the following changes: · Added previews when placing instructions using hotkeys. · Improved the color accuracy of MP4 files exported using ffmpeg. · Tweaked the ippatsu-dai variant of pachi-sol so that it's slightly easier to win. · Adjusted the "spring dress" puzzle so that the lower fabric can be flipped vertically. · Adjusted the "katsu curry" puzzle so that it's more… | 19321359 | |
| In-game event | Bonus Puzzle #1: Super Defender Bot Today's update adds our first weekly bonus puzzle, 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!" Also included in this update: · Added a hotkey for selecting all the instructions in a solution (Ctrl+Shift+A).… | — | |
| Game update | UPDATE: Lots of bug fixes! Today's update fixes lots of bugs! · Fixed a typo in the first cutscene of chapter 2 ("パーフェイ"). · Fixed some visual bugs where products would sometimes reappear after cutting. · Fixed a visual bug where the debris for flip-cut products would sometimes appear in the wrong place. · Fixed a simulation bug where products being flipped would sometimes incorrectly collide with products in their bound… | 19282097 | |
| Game update | UPDATE: Minor bug fixes Today's update fixes a bug, mostly on Mac, where the output previews were dark green. It also slightly adjusts the arms of the "defender bot" puzzle to make it more obvious when they're incorrectly welded. | 19267779 | |
| Game update | UPDATE: Graphics bugs, pachi-sol shuffling In the spirit of kaizen, today's update includes the following improvements: · Moved the text-to-speech key from Alt to F1. · Adjusted the pachi-sol shuffle algorithm so that the first card is always usable and subsequent cards are less likely to be exactly the same twice in a row. · Fixed a bug where GPU utilization would jump to 100% when the game was minimized. · Fixed a graphical bug in the… | 19252957 | |
| Game update | UPDATE: More small fixes In the spirit of kaizen, today's update includes the following improvements: · Fixed a bug where the Shift+scroll hotkey did not work correctly on Mac when using an external mouse. · Clarified the rules for the ippatsu-dai variant of pachi-sol. · Made a small adjustment to the card dealing animation for pachi-sol. | 19237772 | |
| Game update | UPDATE: Launch day fixes In the spirit of kaizen, today's update includes the following improvements: · Fixed a typo in the "sandwich" puzzle story. · Fixed a bug in the "spring dress" puzzle where the belt buckle would not be accepted when flipped upside down. · Fixed a crash when fully destroying a product. | 19223642 |
Announcements are the developer’s own posts to the game’s Steam news feed: updates and their patch notes, in-game events, releases and sales. The important ones are marked on the players chart.