IMHO.

Games like Squadron 51 - Prologue

If Squadron 51 - Prologue is your kind of game, the closest matches are Squad 51 vs. the Flying Saucers, Heavy Metal Titans and Contra: Operation Galuga — 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.

Get personalized picks →

About Squadron 51 - Prologue: Squadron 51 Prologue is free version of Squadron 51. It features 3 levels of entertainment, adding English voiceovers, a never-before-seen boss, and new gadgets for your spaceship to defend Earth from a merciless alien invasion.

2021ActionIndieAdventureRacingWindowsby Loomiarts, Fehorama Filmes
Squadron 51 - Prologue — Steam game cover

Players who liked Squadron 51 - Prologue also play

Steam players who put hours into Squadron 51 - Prologue 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. Squad 51 vs. the Flying Saucers

    WHY THIS

    Top pick for Squadron 51 - Prologue fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Squadron 51 - Prologue.

    UFOs! Aliens! Aircrafts! Resistance! SHOOT 'EM UP! Squad 51 vs. the Flying Saucers is a spaceship shooter with 2D gameplay and 3D environment. Enjoy a smart combination of a fast-paced shooting experience and the 1950's sci-fi movies aesthetic, with live-action cutscenes.

    2022ActionIndieAdventure19.99 USDSteam ↗
  2. Heavy Metal Titans

    WHY THIS

    Second-strongest match for Squadron 51 - Prologue fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Squadron 51 - Prologue.

    Heavy Metal Titans is a modern-retro Run n’ Gun Shoot ‘em up that takes players on a blood-soaked time traveling quest to defeat General Glen Planamento and retrieve the stolen time crystal, a powerful relic that can manipulate time and reality.

    2023ActionIndie0.99 USDSteam ↗
  3. Contra: Operation Galuga

    WHY THIS

    Third-strongest match for Squadron 51 - Prologue fans by collaborative filtering across millions of Steam libraries. Shares Action with Squadron 51 - Prologue.

    The legendary Contra series returns! This reimagining of the classic run-'n'-gun action game from the ‘80s features new stages, new enemies, new play mechanics, and co-op combat for up to 4 players!

    2024Action39.99 USDDeck VerifiedSteam ↗
  4. G-Darius HD

    WHY THIS

    Ranked #4 for Squadron 51 - Prologue fans by collaborative filtering across millions of Steam libraries. Shares Action with Squadron 51 - Prologue.

    You will see the creation of new lives... Capture enemies and fire them back at their allies as enormous beams of energy in this horizontally scrolling shooting game, featuring 5 versions of G-Darius with new features, enhancements, and Steam exclusive extras!

    2022Action14.99 USDDeck PlayableSteam ↗
  5. Neon Inferno

    WHY THIS

    Ranked #5 for Squadron 51 - Prologue fans by collaborative filtering across millions of Steam libraries. Shares Action with Squadron 51 - Prologue.

    NYC 2055: a city beyond salvation. Blast your way through this dense cyberpunk jungle in NEON INFERNO, an explosive fusion of 2D run-and-gun and gallery-shooter, and help the Family dominate its streets!

    2025Action19.99 USDDeck VerifiedSteam ↗
  6. Shoot 1UP DX

    WHY THIS

    Ranked #6 for Squadron 51 - Prologue fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Squadron 51 - Prologue.

    Why play shoot 'em ups one ship at a time? Launch them all at once! Unleash an entire armada of ships in Shoot 1UP!

    2015ActionIndie5.99 USDSteam ↗
  7. Blazing Chrome

    WHY THIS

    Ranked #7 for Squadron 51 - Prologue fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Squadron 51 - Prologue.

    In Blazing Chrome, bring your best pal and kick some metal butts to free the humankind while enjoying a classic run’n’gun, fully loaded with action and exciting fights!

    2019ActionIndie16.99 USDDeck VerifiedSteam ↗
  8. Warhammer 40,000: Shootas, Blood & Teef

    WHY THIS

    Ranked #8 for Squadron 51 - Prologue fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with Squadron 51 - Prologue.

    From the developers of the Guns, Gore and Cannoli franchise comes a new 2D run & gun platformer: Warhammer 40,000: Shootas, Blood & TEEF! Spearhead an Ork invasion, destroy the hive city and kill your warboss! ‘Ere we go!

    2022ActionAdventure19.99 USDDeck VerifiedSteam ↗

Free alternatives

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

  1. ENA: Dream BBQ

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Squadron 51 - Prologue.

    Experience surreal environments and inexplicable characters as ENA in a new wild world.

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  2. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Squadron 51 - Prologue.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  3. Counter-Strike:Global Offensive

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Squadron 51 - Prologue.

    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 ↗
  4. The Expendabros

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Squadron 51 - Prologue.

    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 and Indie with Squadron 51 - Prologue.

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

    2021ActionIndieAdventureFreeDeck PlayableSteam ↗
  6. The Lab

    WHY THIS

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

    Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!

    2016Free To PlayFreeSteam ↗
  7. 93, Kuindzhi

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Squadron 51 - Prologue.

    Kuindzhi, 93 is an atmospheric first-person narrative vignette about an 18-year-old boy from Donbas. The story takes us to March 2022, when the world changed forever — into a space where the past, fears, and doubts find their voice.

    2026IndieAdventureFree To PlayFreeSteam ↗
  8. Tails Noir: Prologue

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Squadron 51 - Prologue.

    Tails Noir: Prologue is the first act of a post-noir narrative adventure. Become raccoon private eye Howard Lotor and explore dystopian Vancouver inhabited by animals as you uncover a deeply personal story of change and transformation.

    2019IndieAdventureRPGFreeDeck PlayableSteam ↗

Plays great on Steam Deck

Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

  1. Contra: Operation Galuga

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action with Squadron 51 - Prologue.

    The legendary Contra series returns! This reimagining of the classic run-'n'-gun action game from the ‘80s features new stages, new enemies, new play mechanics, and co-op combat for up to 4 players!

    2024Action39.99 USDDeck VerifiedSteam ↗
  2. Neon Inferno

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action with Squadron 51 - Prologue.

    NYC 2055: a city beyond salvation. Blast your way through this dense cyberpunk jungle in NEON INFERNO, an explosive fusion of 2D run-and-gun and gallery-shooter, and help the Family dominate its streets!

    2025Action19.99 USDDeck VerifiedSteam ↗
  3. Blazing Chrome

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Squadron 51 - Prologue.

    In Blazing Chrome, bring your best pal and kick some metal butts to free the humankind while enjoying a classic run’n’gun, fully loaded with action and exciting fights!

    2019ActionIndie16.99 USDDeck VerifiedSteam ↗
  4. Warhammer 40,000: Shootas, Blood & Teef

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Adventure with Squadron 51 - Prologue.

    From the developers of the Guns, Gore and Cannoli franchise comes a new 2D run & gun platformer: Warhammer 40,000: Shootas, Blood & TEEF! Spearhead an Ork invasion, destroy the hive city and kill your warboss! ‘Ere we go!

    2022ActionAdventure19.99 USDDeck VerifiedSteam ↗

Frequently asked about Squadron 51 - Prologue

Does Squadron 51 - Prologue have multiplayer or co-op?
Yes — Squadron 51 - Prologue supports multi-player play according to its Steam store listing (Multi-player, Shared/Split Screen Co-op, Co-op).
What games are most similar to Squadron 51 - Prologue?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Squadron 51 - Prologue are Squad 51 vs. the Flying Saucers, Heavy Metal Titans, Contra: Operation Galuga.
Who developed Squadron 51 - Prologue?
Squadron 51 - Prologue was developed by Loomiarts, Fehorama Filmes and published by WhisperGames, Assemble Entertainment.

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 Squadron 51 - Prologue.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.