In the game, you'll play as a cat engineer and travel to different countries such as Hong Kong, Taiwan, Egypt, and more, each with its unique house styles and layouts.
Each country in the game is comprised of multiple houses that need to be connected with power lines to provide electricity. Each house can be connected with up to 8 power lines, and can only be connected to houses that are directly adjacent to it, either vertically or horizontally, without diagonal connections. Additionally, each side of a house can only have a maximum of 2 power lines connected to it, so you'll need to carefully consider your connections.
There are also special tools in the game, such as tools that can change the direction of power lines, which can help you adjust the path of the lines to connect the houses; and tools that can increase or decrease the amount of electricity each power line can provide to the houses, ensuring that each house has enough power supply. You'll need to cleverly use these tools to strategically plan your power line connections and ensure that every house has enough electricity.
The goal of the game is to connect all the houses together and ensure that each house has sufficient electricity. When you successfully connect all the houses and make sure they all light up, the game will end, and you'll be treated to the visual effect of the power lines lighting up, giving you a sense of accomplishment as a cat engineer.
"Cat Engineer: Electricity Adventure" is not just a puzzle game, it combines house layout, power line connections, and electricity supply strategy, providing a challenging and engaging gaming experience for players who enjoy puzzle and strategy games.
CONNECT CABLE TO LIGHT THE WORLD UP
Place and remove connection to make every house light up. But, be careful and don't overload the electricity, each building would have different maximum supply.120+ PUZZLE TO COMPLETE
The main levels will take you through around the world, you can feel relax and enjoy the scenery during the puzzle. The puzzle will burn you brain even you smart like the catgineer.SPECIAL MECHANICS
Use mutiplier can mutiply the eletricity to the building. You can transmission the power by tunnel. Redirect the electricity by using redirector, and tons of feature and spacial mechnics in the puzzle. Bring the light to everyone!!WHOLESOME VIBES IN FULL OF GAME
The puzzles are difficult but the vibe is wholesome, we have the collection comic book after finish each world.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.
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/068ce4378400a21af10cb3412e9d69719bb8fe45.png\"][/img]
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 place underground tunnels, you must place 2 tunnels of the same color.
[/*]To place electric switches, you must place an electric controller.
[/*]You can only place 2 tunnels of the same color.
[/*]There must be at least one space between each house.
[/*]After placing an electric switch, generating another electric switch will automatically change it into an electric controller.
[/*]All houses must be connected and follow the game rules.
[/*]If you meet the above rules, you can click the save button on the right or press the \"S\" key to save.
[/*]If you do not meet the above rules but click the save button, it will not save and will display the error.
[/*]
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/137cadc42f166b4a7274b361280a70deb88c61b1.png\"][/img]
After successfully saving, the following interface will pop up. The string on the interface is your custom level string, which you can save to your computer\'s clipboard by clicking the left button. Use Ctrl + V to paste the string you just copied!
You can share the string with your friends so they can play your level, or you can share your level string for strangers to play here:
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/7610194b81bd8af4d70f40b5c67fb7fdeaa12a21.png\"][/img]
In the bottom left of the level selection screen, theres a button that will pop up an interface for inputting the level string. Enter the level string and click the start button below to play levels created by others!!
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/694c3541457cb3c70b2060c26b52b0fdcba732cd.png\"][/img]
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
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: Electric Switch
[/*]
Item 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 enjoys playing!
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/21189b6861651a5337158efeec347474f3937052.png\"][/img][img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/7a3baa56fee04997fb57ce4655fe7d92d84bf0f7.gif\"][/img]
An update will be conducted on October 8th!!
The update will introduce World 8 <
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/ec3db9b21e61b52fd91534ac090b313e0fbcac54.png\"][/img]
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 <
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.[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/c5709400fdb31688d34e96276542ebcd057b594c.png\"][/img][img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/028291cfed8365fd68b533f8c6748876a7091f4a.png\"][/img]
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 are already connected will change color.
[/*]When the mouse hovers over a portal for a while, it will not only show the connectable segments but also change the segments connected to that portal to blue, while the segments connected to the exit portal will turn green. Segments that are not connected to the entry or exit portals will remain black.
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/3c0fb9b388a883933206d8922220ff3c914041e7.gif\"][/img]
[/*]
now the right coner hits number can show more than 8
Now, when the line is deleted, it will check for puzzle complete.\n\n
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/2683d81f919962df4c32699cfbe5a5d4ca2825dc.png\"][/img]
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 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 Overview
This game is based on the classic numerical logic puzzle game Number Bridge and cleverly incorporates eight special items, making the gameplay more diverse and challenging. With a total of 120 levels, players will experience endless fun and excitement. The entire game features an innovative text-free design, allowing players to easily grasp the gameplay and item usage through exquisite level design and vivid visuals. In the later stages of the game, these eight special items will be cleverly combined, challenging your intellect and reaction skills.
Additionally, a free update with 20 extra levels will be released in the future, making the exploration journey even more exciting. Join the ranks of the Cat Engineer, light up the world, and experience this creative and challenging adventure!
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/2683d81f919962df4c32699cfbe5a5d4ca2825dc.png\"][/img]
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!
[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/43788912/274a972cf810b5ed34ad9b02a2abefb5b080f6df.png\"][/img]
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:
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.
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!
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/ 
- 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
weekly update.
Level select page : hong kong map updated
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!
Minimum Setup
- Memory: 500 MB RAMStorage: 500 MB available space
- Storage: 500 MB available space
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