Screenshots
Watch trailer on Steam ↗Train Reaction
Logic Breaker Studio · Published by Logic Breaker Studio
Last updated 29 Sept 2026
Train Reaction is a satisfying puzzle game about automating efficient train networks. Create the logic that powers signals and junctions in order to deliver cargo and avoid crashes. Optimize your solutions for efficiency and climb the global leader boards!
Indie, Strategy · More free games
Design efficient train routes and avoid crashes in Train Reaction. Challenge yourself to beat high scores while mastering logic puzzles from Logic Breaker Studio.
About this game
Automate
Use simple logic building blocks to change signals and junctions. Create functioning train networks in order to deliver goods between stations in a timely matter. Transport enough cargo without any crashes to complete each level!
Optimize
Completing each level is only the beginning! Improve your solutions in a never-ending quest for efficiency! A more efficient solution comes with more satisfaction!
Compete
Fight for your spot on each level's leader-board in one (or all) of the 3 unique scoring categories. Whether you're trying to one up your friends list, or climbing the global ladder, every improvement is more satisfying than the last!
Challenges
Each level has its own optional challenge restriction that adds a unique twist and offers new and refreshing puzzles to solve! Throw away your first solution and turns things on its head as you must change your approach!
System Requirements
Will my PC run this? →Minimum
- OS: 64-bit Window 10
- Processor: 2.8 GHz Dual Core CPU
- Memory: 4 GB RAM
- Graphics: GeForce GTX 660, Radeon R7 370 or equivalent with 2 GB of video RAM
- Storage: 2 GB available space
Recommended
- OS: 64-bit Window 10
- Processor: 3.2 GHz Quad Core Processor
- Memory: 4 GB RAM
- Graphics: GeForce GTX 660, Radeon R7 370 or equivalent with 2 GB of video RAM
- Storage: 2 GB available space
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
New Leaderboard Category and Leaderboard reset
Leaderboards Have Been ResetThere are a few changes that directly impact the scores of solutions in this update. Unfortunately this means that the leaderboards have to be reset so that players are not comparing to scores that may not be achievable. Your solutions have not been affected, and you can simply re-upload your scores by letting your solutions play out from start to finish! Entire leaderboard resets will hopefully be quite rare, but the game is still currently under development so I cannot promise that this will be the last one. New Leaderboard CategoryWith the influx of players competing on the leaderboard, it was clear that the logic calls category simply wasn't a fun score to optimize. There were little quirks with the system that just encouraged players to use as many hard drives as possible all with specific conditions. There were considerations to changing how the logic calls are counted, but it would add extra complexity to an already not intuitive score. So instead of changing it, the obvious solution was to replace it entirely! The logic calls category has been replaced by "Hard Drives Used". Now, the third category ranks you based on how many hard drives your solution is built with. Just like the other categories, fewer is better! Let me know if you enjoy hunting for high scores in this new category! Page Selecting in the Logs WindowOptions to switch between the different pages of logic have now been added. This not super useful for the demo levels, but you can try it out in the logs tab after a solution runs more than 30 logic calls.Bug FixesFixed a bug where specific situations could cause trains to ignore a red lightFixed a bug where the colors in the logs would be inaccurate on any page other than page 1 Fixed a typo in the creditsRead full article on Community Announcements (Logic Breaker Studio)Patch NotesOfficial
Version d0.4.2
New Features Added a leaderboards button to the pause menu while playing a level that the player has beaten before. Bug Fixes Fixed a bug where middle clicking objects would open the condition panel on levels where the condition was supposed to be locked Fixed a bug where solution names would extend out of its button if it was too long Fixed a bug where viewing the leader boards after beating a level would cause the escape button to stop working Fixed a bug where leaderboard animations would not work in some casesRead full article on Community Announcements (Logic Breaker Studio)Patch NotesOfficial
Leaderboards Fix
Leaderboards should now work correctly in the demo version of the game for all players. If you played the game while it was not functional, you can still upload your scores by loading your solutions and letting them play out start to finish!Read full article on Community Announcements (Logic Breaker Studio)
