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  1. All games
Light On cover art

Light On

indigo game production

Released
29 Aug 2025
Platforms
AppleLinux
Last updated
14 Sep 2026, 06:54
Wishlist on SteamAdd it on the Steam store page. Opens in a new tab.
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PuzzleDifficultRelaxingComic Book
Latest players
0
Player history
Steam reviews
0
0 reviews
Steam followers
126
Follower history
United States store
$8.99
Regional prices
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Updates & announcements

Developer posts and news about this game.

Change historyBuilds & patches
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  1. 22 Nov 2025Developer post

    Workshop is now Updated!!

    Players can now create their own levels and publish them for friends or others to play!! You can find the button to enter level creation mode in the bottom left corner of the level selection screen. Once you enter level creation mode, you can start creating your own custom levels

    Read update · Original post

  2. Light OnLight On cover art
    05 Nov 2025Developer post

    Added Steam Cloud Save system to fix progress loss issues after updates

    We have now added the Steam Cloud Save system, allowing you to play on different devices while retaining your progress. Due to previously collected feedback from players about progress loss issues caused by updates, all levels are now accessible. Levels are now categorized as eit

    Read update · Original post

  3. 09 Oct 2025Developer post

    Game Update Version 1.2

    Game Update Version 1.2 Phew, the update is finally complete! It took a bit longer due to some important matters and the discovery of a few bugs. Update Content: 24 new levels, including 4 extremely difficult levels Updated Map: Taiwan Updated Collectible Image: Taiwan New Item:

    Read update · Original post

  4. 27 Sep 2025Developer post

    Update Preview Version 1.2 new levels and new items added.

    An update will be conducted on October 8th!! The update will introduce World 8 <>, featuring a total of 24 levels, including 4 extremely difficult levels. New items will be added, including a power switch. The items will be divided into power control and switching component

    Read update · Original post

  5. 14 Sep 2025Developer post

    Major Update: Version 1.1, 28 new extremely difficult levels and UX update

    Hello everyone, thank you for your support! We have currently sold about 100 copies of the game. This update will bring you 4 extremely difficult levels for each world, totaling 28 levels, along with UX updates. You can now see purple special levels on the map. Each map has 4 spe

    Read update · Original post

  6. Light OnLight On cover art
    02 Sep 2025Developer post

    bug fix

    now the right coner hits number can show more than 8

    Read update · Original post

  7. Light OnLight On cover art
    01 Sep 2025Developer post

    bug fix

    Now, when the line is deleted, it will check for puzzle complete.

    Read update · Original post

  8. 29 Aug 2025Developer post

    Light On Officially Released on Steam

    Introduction Exciting news for players who love cute cats and puzzle games! Cat Engineer: Light On will officially launch on Steam on August 29, 2025. This game is meticulously crafted by the independent development team, Indigo Game Production. Featuring a unique hand-drawn art

    Read update · Original post

  9. 25 Jul 2025Developer post

    Major announcement! The game will be released on August 29 at 08:00 (UTC+0)

    Major announcement! The game will be released on August 29 at 08:00 (UTC+0). We hope everyone will support us! In the release version, there will be 7 different special tools, 140 unique levels, 7 maps from different countries, and 7 collections. The estimated playtime is over 10

    Read update · Original post

  10. 24 Jan 2025Developer post

    Level Among Survey

    Hello everyone, This survey is aimed at gathering your opinions on the spacing between levels with new items. Do you prefer having more levels, or would you like the gameplay to progress faster? We hope you can provide your feedback! Google Form: We hope you enjoy the playtest ve

    Read update · Original post

  11. 08 Jan 2025Developer post

    Bug Fix and small update

    Bug Fix: Ensure that the next level can be generated correctly. Minor Updates: When the power supply of the house equals the required power, the number in the upper right corner will turn green. A sound effect will play when the mouse hovers over the house. A display showing the

    Read update · Original post

  12. 03 Jan 2025Developer post

    Major update to the demo version!!

    The playtest version has been updated! Update Details: Scene Update: The game scenes are now represented in a blueprint format, providing a warmer feel and making game items easier to access. House Number Display: In addition to the required power in the center, the number of con

    Read update · Original post

  13. 06 Nov 2024Developer post

    Do you like this new capsule

    The logo now has a bloom effect and is more related to our game content, which includes tools, links, puzzles, and blueprint elements. The background is cozier, cleaner, and features cats. My game is a numerical puzzle game similar to Sudoku and Hashi. I am adding more elements a

    Read update · Original post

  14. Light OnLight On cover art
    20 Jan 2024Developer post

    Which expression is better? Left or Right

    Read update · Original post

  15. Light OnLight On cover art
    08 Aug 2023Developer post

    Demo Update

    Add particle effect for every game scene Add switch and next button for end game Add R key for reset all step Add Z key for redo Fix next level error Hope you guys love my game and burn your brain

    Read update · Original post

  16. 01 Apr 2023Developer post

    Light On Weekly Update 1/4

    weekly update. Level select page : hong kong map updated

    Read update · Original post

  17. Light OnLight On cover art
    23 Mar 2023Developer post

    Light On are Now On Steam

    Hi everyone Light On are on steam now. Hope you guys can follow and wishlist our new game! Light On is the puzzle game inspire by Hashiwokakero. We have add more feature and modified it that Light On born. Light On is a cozy and wholesome puzzle game, the purpose of the game is b

    Read update · Original post