Single-player games like Squadron 51 - Prologue
Below are 8 single-player Steam games similar to Squadron 51 - Prologue, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Squadron 51 - Prologue page.
Ranked picks
- 1
Squad 51 vs. the Flying Saucers
Single-player alternative to Squadron 51 - Prologue — playable solo, no multiplayer required. 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.
- 2
Heavy Metal Titans
Single-player alternative to Squadron 51 - Prologue — playable solo, no multiplayer required. 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.
- 3
Contra: Operation Galuga
Single-player alternative to Squadron 51 - Prologue — playable solo, no multiplayer required. 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!
- 4
G-Darius HD
Single-player alternative to Squadron 51 - Prologue — playable solo, no multiplayer required. 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!
- 5
Neon Inferno
Single-player alternative to Squadron 51 - Prologue — playable solo, no multiplayer required. 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!
- 6
Shoot 1UP DX
Single-player alternative to Squadron 51 - Prologue — playable solo, no multiplayer required. 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!
- 7
Blazing Chrome
Single-player alternative to Squadron 51 - Prologue — playable solo, no multiplayer required. 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!
- 8
Warhammer 40,000: Shootas, Blood & Teef
Single-player alternative to Squadron 51 - Prologue — playable solo, no multiplayer required. 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!