Single-player games like Palpus X Annihilation
Below are 8 single-player Steam games similar to Palpus X Annihilation, 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 Palpus X Annihilation page.
Ranked picks
- 1
Gunslinger Nova
Single-player alternative to Palpus X Annihilation — playable solo, no multiplayer required. Shares Action with Palpus X Annihilation.
A top-down, 2d space-shooter that pits the user against swarms of alien ships from other dimensions. Destroy all enemies and portals as fast as possible. Battle increasingly tougher enemies through 40 Campaign levels and Endless Mode!
- 2
Alien Breed: Impact
Single-player alternative to Palpus X Annihilation — playable solo, no multiplayer required. Shares Action with Palpus X Annihilation.
Experience the explosive science fiction arcade-shooter that resurrects a much revered franchise in an epic single player and co-op multiplayer campaign.
- 3
Shadowgrounds
Single-player alternative to Palpus X Annihilation — playable solo, no multiplayer required. Shares Action with Palpus X Annihilation.
Shadowgrounds breathes fresh air into the action genre with explosive combat sequences, an innovative weapon upgrade system, and an intriguing storyline. The adrenaline-pumping, top-down gameplay and audiovisual fireworks set the scene for this new action experience which also includes single computer (split keyboard or joystick) co-op...
- 4
Alien Breed 3: Descent
Single-player alternative to Palpus X Annihilation — playable solo, no multiplayer required. Shares Action with Palpus X Annihilation.
Experience the final explosive chapter in the Alien Breed series and uncover the horrifying truth surrounding the existence of the Breed. Launch discount good thru Nov. 24 10am PST.
- 5
Alien Breed 2: Assault
Single-player alternative to Palpus X Annihilation — playable solo, no multiplayer required. Shares Action with Palpus X Annihilation.
Can you survive the alien onslaught? Gamers across the world will now have a chance to play the next chapter in this high-budget, high-quality series.
- 6
Cosmonator
Single-player alternative to Palpus X Annihilation — playable solo, no multiplayer required. Shares Action and Indie with Palpus X Annihilation.
Cosmonator is an 'RPG-em-up': a hybrid of classic fast-paced top-down shoot-em-up action infused with deep character building elements. Build up your own unique alien-killing machine to avenge the destruction of planet Earth!
- 7
Retro Classix: SRD - Super Real Darwin
Single-player alternative to Palpus X Annihilation — playable solo, no multiplayer required. Shares Action with Palpus X Annihilation.
Super Real Darwin is a fast-paced, vertical scrolling shoot-em-up that rewards skill and persistence – a cult classic for the retro shmup fan. Take control of a fighter ship capable of mutating into different shapes as it evolves while fighting off enemy invaders.
- 8
Gunnheim
Single-player alternative to Palpus X Annihilation — playable solo, no multiplayer required. Shares Action and Indie with Palpus X Annihilation.
Dish out carnage of hellish proportions in Gunnheim, a top-down co-op shooter where the equation is simple: Vikings + Guns = Mayhem!