Single-player games like Squad 51 vs. the Flying Saucers
Below are 13 single-player Steam games similar to Squad 51 vs. the Flying Saucers, 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 Squad 51 vs. the Flying Saucers page.
Ranked picks
- 1
Squadron 51 - Prologue
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Indie with Squad 51 vs. the Flying Saucers.
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.
- 2
Space Dragons
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Indie with Squad 51 vs. the Flying Saucers.
Choose your spaceship and defeat the alien threat that comes from the Moon. Blast your way crushing, ripping apart and exploding hostile aliens that are taking control of powerful weapons and military technology from Earth. Find the entity that controls the threat and make it explode into blood.
- 3
Space Warpster
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Indie with Squad 51 vs. the Flying Saucers.
A fast-paced retro arcade shooter inspired by classic 1980s side-scrolling space combat. Weave through organic obstacles, survive relentless enemy waves, and defeat powerful end-level bosses in a pure, skill-driven singleplayer experience.
- 4
G-Darius HD
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action with Squad 51 vs. the Flying Saucers.
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
Shoot 1UP DX
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Indie with Squad 51 vs. the Flying Saucers.
Why play shoot 'em ups one ship at a time? Launch them all at once! Unleash an entire armada of ships in Shoot 1UP!
- 6
REMOTE LIFE
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Indie with Squad 51 vs. the Flying Saucers.
Remote Life is a 2D Side scrolling space shooter (shmup) for PC. Experience a fast paced action game with insane scary graphics, and hyper jump into a brutal-frenetic-techno-alien world. Free the world from this dreadful nightmare before its nauseating breath of horror destroys mankind.
- 7
Contra: Operation Galuga
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action with Squad 51 vs. the Flying Saucers.
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!
- 8
Alien Hominid HD
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Indie with Squad 51 vs. the Flying Saucers.
The 2D side-scrolling shooter from The Behemoth is back! With your mighty blaster and a group of mysterious kids by your side, destroy the agency and reclaim your spaceship!
- 9
Unstoppable Gorg
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Indie with Squad 51 vs. the Flying Saucers.
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
- 10
Cuphead
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Indie with Squad 51 vs. the Flying Saucers.
Cuphead is a classic run and gun action game heavily focused on boss battles. Inspired by cartoons of the 1930s, the visuals and audio are painstakingly created with the same techniques of the era, i.e. traditional hand drawn cel animation, watercolor backgrounds, and original jazz recordings.
- 11
Sky Force Reloaded
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Indie with Squad 51 vs. the Flying Saucers.
Sky Force Reloaded is a classic shoot ‘em up experience packed in gorgeous visuals and excellent gameplay. Enjoy flashy explosions, beautiful scenery and massive bosses in single player or local cooperative modes.
- 12
Destroy All Humans!
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action and Adventure with Squad 51 vs. the Flying Saucers.
The cult-classic returns! Terrorize the people of 1950's Earth in the role of the evil alien Crypto-137. Harvest their DNA and bring down the US government in the faithful remake of the legendary alien invasion action adventure. Annihilate puny humans using an assortment of alien weaponry and psychic abilities.
- 13
R-Type Final 2
Single-player alternative to Squad 51 vs. the Flying Saucers — playable solo, no multiplayer required. Shares Action with Squad 51 vs. the Flying Saucers.
R-Type has returned! The legendary side-scroller is back and better than ever with beautifully rendered 3D graphics, exhilarating shoot-'em-up gameplay, and a multitude of stages, ships, and weapons that will allow you to conduct a symphony of destruction upon your foes.