Screenshots
Watch trailer on Steam ↗Proto Trigger
Busted Atlas · Published by Busted Atlas
Last updated 28 Sept 2026
An arcade shoot'em up with unique power-infusion gameplay. Face down an unknown army alone or with a friend in online or local co-op. Navigate the cosmos to save the remants of humanity, or join them in extinction!
Action · 2026 · More free games
Navigate the cosmos and face down an enemy force in Proto Trigger. Developed by Busted Atlas, this arcade shoot'em up challenges you to save humanity or join its fate in co-op or solo play.
About this game
Dive into an arcade shoot'em up with unique power-infusion gameplay. Face down an unknown army alone or with a friend in online or local co-op. Navigate the cosmos to save the remants of humanity, or join them in extinction!
Features
Online & Couch Co-op: Blast through the solar system with your wingman.
Infusion Gameplay: Take control of the battlefield, infuse your enemies with different powerups!
Branching Paths: Different level triggers let you access different routes on your way to The Core.
Combo System: Switch up your attacks, power enemies up and don't stop blasting to keep your multiplier rising.
Leaderboards: Show the world who's boss, no six-figure salary? What about a SEVEN-figure high score. Oof.
Control the battlefield
Infuse your enemies - Change their weapons, corrupt their bullets. Wreak HAVOC.
Explore the galaxy
Find the truth - Delve into the deepest, darkest parts of the cosmos. SURVIVE.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10
- Processor: Intel Core i4
- Memory: 4 GB RAM
- Storage: 500 MB available space
Supported Languages
*languages with full audio support
Latest news
Community & EventsOfficial
Beta Demo & Bullet Fest 2026
The DemoWelcome back cadets, it's a big one today! The beta 'early look' demo has blasted onto the scene and will remain playable. It will recieve periodic updates, to keep it in line with the main development branch. These will be primarily gameplay and system improvements.Bullet Fest & FeebackProto Trigger is officially part of the first Bullet Fest - which is an absolute honour! While this is a great chance to show you what I've got at the moment, what is going to make Proto Trigger great is your feedback, which you can submit via this form, make a post in the Steam discussions or via the discord. I'm looking forward to hearing from you.All the best, Busted AtlasRead full article on Community Announcements (Busted Atlas)AnnouncementsOfficial
Alpha Playtest
The Alpha Playtest for Proto Trigger is now LIVE!Hi everyone, I'm Busted Atlas, the solodev working on Proto Trigger! The playtest is accessible from the store page here: About the game;Proto Trigger is an arcade style vertical shoot'em up where you control the battlefield. Armed with your infusion wave, you can change the enemies weapon, defend against grotesque parasites and more. (at least in the full release!). The game has both local and online multiplayer, so you can play alone or with friends. 🐱🚀👨🚀Currently looking for feedback on;the infusion mechanic, how it feels and how intuitive it is to use.the stability of the online multiplayer (I'm a solo dev afterall!)difficulty of the 3 available levelsgeneral performanceBehind the scenes;If you're curious, you can learn more about Proto Trigger in the first devlog:Read full article on Community Announcements (Busted Atlas)
