IMHO.

Games like Proto Trigger

If Proto Trigger is your kind of game, the closest matches are Autonomous Anarchy, Crisis Wing and Hollow Ground — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Proto Trigger: 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!

2026ActionWindowsby Busted Atlas
Proto Trigger — Steam game cover

Players who liked Proto Trigger also play

Steam players who put hours into Proto Trigger also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Autonomous Anarchy

    WHY THIS

    Top pick for Proto Trigger fans by collaborative filtering across millions of Steam libraries. Shares Action with Proto Trigger.

    A retro twin-stick bullet-hell where you fight hordes of enemies, collect powerful weapons and upgrades, and go head to head with menacing mechanical bosses. Take on the hordes solo or with a friend in local co-op!

    2026ActionIndieSteam ↗
  2. Crisis Wing

    WHY THIS

    Second-strongest match for Proto Trigger fans by collaborative filtering across millions of Steam libraries. Shares Action with Proto Trigger.

    Crisis Wing is 90's style vertically scrolling arcade shooter. Master 7 intense vertical stages, and take down massive bosses. Play solo or with a friend in local co-op. Get ready for pure, high-octane action.

    2020ActionIndie7.99 USDDeck VerifiedSteam ↗
  3. Hollow Ground

    WHY THIS

    Third-strongest match for Proto Trigger fans by collaborative filtering across millions of Steam libraries. Shares Action with Proto Trigger.

    Top-down shooter inspired by 90s arcade games. You and up to three friends play as four mercenaries as they descend into the Epsilon 9 bunker. Navigate 70+ handcrafted labyrinthine levels, purchase upgrades, and destroy chaos manifest: The Machine.

    2026ActionSteam ↗
  4. Whisperborn: Child of the Forest

    WHY THIS

    Ranked #4 for Proto Trigger fans by collaborative filtering across millions of Steam libraries. Shares Action with Proto Trigger.

    Whipserborn is a dark 2D roguelike set in a living forest shaped by sorrow. Explore procedurally generated levels, craft powerful spell combos, upgrade a mysterious hub, and uncover your forgotten soul’s truth—alone or in seamless co-op.

    ActionIndieAdventureSteam ↗
  5. Tank Them All

    WHY THIS

    Ranked #5 for Proto Trigger fans by collaborative filtering across millions of Steam libraries. Shares Action with Proto Trigger.

    Chaotic top-down tank brawler for 2–6 players — local or online. Grab 16 wild power-ups, survive poison clouds and air raids, and dominate 90+ arenas across 4 game modes including King of the Hill and Golden Shell.

    ActionIndieSteam ↗
  6. Qorena

    WHY THIS

    Ranked #6 for Proto Trigger fans by collaborative filtering across millions of Steam libraries. Shares Action with Proto Trigger.

    Qorena is a top-down, bullet hell, action-arena shooter of pure, survival, action! Bundled with a wide variety of multiplayer levels of bullet-raining hell, numerous monsters to fight, and the ability to customize the world!

    2022ActionIndieAdventureFreeDeck PlayableSteam ↗
  7. M.O.O.D.S.

    WHY THIS

    Ranked #7 for Proto Trigger fans by collaborative filtering across millions of Steam libraries. Shares Action with Proto Trigger.

    Grab a gun and take down hostile robots corrupted by synthetic emotions! Combine weapon modifications and wreak havoc in this roguelite shooter. Let your emotions shape combat and alter boss fights! Fight alone or join up with up to 4 players!

    2025ActionIndieAdventure12.99 USDSteam ↗
  8. Meowmunitions

    WHY THIS

    Ranked #8 for Proto Trigger fans by collaborative filtering across millions of Steam libraries. Shares Action with Proto Trigger.

    Meowmunitions gives you a roguelike bullet hell experience with a unique gun customization mechanic, letting you design your gun however you like. The random nature of the game, with multiple augments and artifacts, forces you to think of new and creative synergies to approach each run.

    2025ActionIndieAdventure12.99 USDSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Proto Trigger.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  2. Counter-Strike:Global Offensive

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Proto Trigger.

    Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).

    2012ActionFree To PlayFreeDeck PlayableSteam ↗
  3. Awaria

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Proto Trigger.

    Awaria is a short game about working in haunted maintenance tunnels.

    2024ActionIndieFree To PlayFreeDeck PlayableSteam ↗
  4. The Expendabros

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Proto Trigger.

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedSteam ↗
  5. UNBEATABLE [white label]

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Proto Trigger.

    A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.

    2021ActionIndieAdventureFreeDeck PlayableSteam ↗
  6. Disfigure

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Proto Trigger.

    Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!

    2023ActionIndieFreeDeck PlayableSteam ↗
  7. DORONKO WANKO

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Proto Trigger.

    『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.

    2024ActionSimulationFree To PlayFreeSteam ↗
  8. Control, I'm Not Coming Back

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.

    2026IndieAdventureFree To PlayFreeSteam ↗

Frequently asked about Proto Trigger

Does Proto Trigger have multiplayer or co-op?
Yes — Proto Trigger supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, Shared/Split Screen Co-op).
What games are most similar to Proto Trigger?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Proto Trigger are Autonomous Anarchy, Crisis Wing, Hollow Ground.
Who developed Proto Trigger?
Proto Trigger was developed by Busted Atlas.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Proto Trigger.

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