Steam
PROJECT TACHYON
Also known as PROJECT TACHYON, project tachyon, project-tachyon
An exhilarating run-and-gun action shooting game based on a Roguelite! Travel through time with Sigma to thwart the uprising of artificial intelligence and fight for the future!
Last update
16 Jun 2026
Latest update
Update history
Browse past updates and patch notes for this game.
20 updates
August 2025
- [Notice] Version 1.3.0 Update (Patch Notes)【Patch Summary】 ・Added upgrade options for all weapons ・Added upgrade options for all skills With this update, all weapons and skills now support four standard upgrade options. Ultimate Skills now support two upgrade op…
May 2025
- Welcome to PROJECT TACHYON.This project tasks you as a special Tachyon Agent, in which you are able to bring information obtained in the future back to the past, with the mission to stop the rebellion of the A.I. mainfr…Store
- [Patch Summary] New Skills, Weapons, and Items added Adjustments to Weapons and Genetic Enhancements Default weapon Selection feature added [Update Details] New Skill [Interceptor Launch] Deploy small interceptors that…Security
- Welcome to PROJECT TACHYON.This project tasks you as a special Tachyon Agent, in which you are able to bring information obtained in the future back to the past, with the mission to stop the rebellion of the A.I. mainfr…Store
April 2025
- [Patch Summary] Fixed some bugs [Update Details] Fixed an issue where players standing on OMEGA’s head could sometimes be launched far away when “Mainframe OMEGA” transitioned to phase 3. -Fixed an issue where projectil…Patch notes
March 2025
- TACHYON REPORT #11One month after its release, PROJECT TACHYON has received a "Very Positive" rating from worldwide players on Steam. We appreciate your amazing support and participation in the project! We are excited to announce our ver…
- TACHYON REPORT #10To all those who are currently participating in the project, and those who wish to join, Welcome to PROJECT TACHYON. This project involves becoming a special Tachyon Agent, that can bring information obtained in the fut…
- TACHYON REPORT #9To those who are currently participating in the project, and those who wish to join, Welcome to PROJECT TACHYON. This project involves becoming a special Tachyon Agent, that can bring information obtained in the future,…
- [Patch Summary] Added the twin-stick shooter (R-stick aiming) preset, Adjustments for the Auto Aim and Lock Aim, “Codex” illustrations are added, Improved the resource balance. [Update Details] [About the Controller Pre…Patch notes
February 2025
- TACHYON REPORT #8Welcome to PROJECT TACHYON. This project involves becoming a special Tachyon Agent, that can bring information obtained in the future, back to the past in order to stop A.I. mainframe Omega's rebellion. For those wishin…
- TACHYON REPORT #7Welcome to PROJECT TACHYON. This project involves becoming a special Tachyon Agent, that can bring information obtained in the future, back to the past in order to stop A.I. mainframe Omega's rebellion. For those wishin…
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