Light On — patch notes and updates
Stored observation / content update:
Dated developer announcements recorded from Steam. Open the source for the complete update.
| Update | Date | Excerpt / source |
|---|---|---|
| Workshop is now Updated!! | 2025-11-22 | 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. Click the items button at the bottom to generate the items, or you can use keyboard shortcuts to generate them. After finding the desired location, you can click the left mouse button to place the item.If you want to delete an item, hover your mouse over the item and press the "D" key on your keyboard to delete it!!Please note the following rules for item placement:To |
| Added Steam Cloud Save system to fix progress loss issues after updates | 2025-11-05 | 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 either completed or not completed. To obtain collectible images, you only need to complete the final level of each map. |
| Game Update Version 1.2 | 2025-10-09 | Game Update Version 1.2Phew, 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 levelsUpdated Map: TaiwanUpdated Collectible Image: TaiwanNew Item: Electric SwitchItem Breakdown:Electric Remote Control: When connected to a wire, the electric switch will move 90 degrees clockwise. It cannot be directly wired to the electric switch.Electric Switch: Similar to the regular switch, it can interact with amplifiers. The number of input and output connections must be the same, and it cannot be clicked to rotate.I hope everyone |
| Update Preview Version 1.2 new levels and new items added. | 2025-09-27 | 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 components. This switch cannot be rotated by right-clicking; instead, it will rotate based on the number of connections to the power control. Each wire connected to the power control will cause the power switch to rotate 90 degrees clockwise.A new collectible album > will also be added. |
| Major Update: Version 1.1, 28 new extremely difficult levels and UX update | 2025-09-14 | 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 special levels, which will appear once the area is completed to a certain extent. The difficulty of the special levels will be extremely high, and it's estimated that each level after the third map will take about 8 minutes on average.UX Updates:When the mouse hovers over a house for a while, it will now show the connectable segments for that house, and the segments that |
| bug fix | 2025-09-02 | now the right coner hits number can show more than 8 |
| bug fix | 2025-09-01 | Now, when the line is deleted, it will check for puzzle complete. |
| Light On Officially Released on Steam | 2025-08-29 | IntroductionExciting 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 style, it takes players on a fantastical adventure around the globe, including locations like Hong Kong, Taiwan, and South Africa, bringing bright electricity to every corner. Successfully completing tasks will reward you with beautifully designed collectible art pieces that commemorate this wonderful journey.Gameplay OverviewThis game is based on the classic numerical |
| Major announcement! The game will be released on August 29 at 08:00 (UTC+0) | 2025-07-25 | 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 hours.I hope everyone enjoys the game and learns the rules in a wordless world while going on adventures with the cute cats! |
| Level Among Survey | 2025-01-24 | 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: https://forms.gle/EJHrLe2xj3Atsaui6 We hope you enjoy the playtest version! |
| Bug Fix and small update | 2025-01-08 | 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 number of connected units has been added to the upper right corner of the tunnel. |
| Major update to the demo version!! | 2025-01-03 | 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 connected items will now be displayed in the top right corner. Adjusted Difficulty Curve: The difficulty of the levels has been smoothed out for a better experience. Current Levels: The playtest version now includes 30 levels, with 2 different special items available. New Buttons: R: Remove all lines Z: Undo the last action X: Redo the next action hope you enjoy playing! |
| Do you like this new capsule | 2024-11-06 | 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 and variations to make it more fun and cozy, not just numbers in the gameplay. If you love my game, you can try our demo and wishlist it on Steam. I will keep you updated about this game. Thank you for loving my game! Steam : https://store.steampowered.com/app/2316640/Cat_Engineer_Light_On/ |
| Which expression is better? Left or Right | 2024-01-20 | |
| Demo Update | 2023-08-08 | 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 |
| Light On Weekly Update 1/4 | 2023-04-01 | weekly update. Level select page : hong kong map updated |
| Light On are Now On Steam | 2023-03-23 | 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 bring the light to the world. Catgineer will bring the light to all of the world! The Demo Version now are in developing state, hope you like our games! |