Single-player games like Alien War One
Below are 8 single-player Steam games similar to Alien War One, 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 Alien War One page.
Ranked picks
- 1
Hyper Sentinel Fusion
Single-player alternative to Alien War One — playable solo, no multiplayer required. Shares Action with Alien War One.
Pilot an agile starfighter to tear down alien megastructures under fire, then pull off a high-stakes heist from within before everything explodes. When you die time rewinds, sending you back to Moonbase Alpha - your hub for reinvention. Spend your bounty on epic upgrades, ready for the next run.
- 2
Anima Reaver
Single-player alternative to Alien War One — playable solo, no multiplayer required. Shares Action with Alien War One.
A 3D Sci-Fi space shooter game where you fight against big flagships and bases to unlock the secrets of the world.
- 3
Neon Armada - Solar Storm
Single-player alternative to Alien War One — playable solo, no multiplayer required. Shares Action with Alien War One.
A top-down arena roguelite you can learn in one wave and spend a hundred hours mastering. Waves close in from every edge; the shop between them decides what you become. 32 ships, 28 weapons, 115 mods to combine — then endless mode, where the caps come off.
- 4
Zarlor Mercenary
Single-player alternative to Alien War One — playable solo, no multiplayer required. Shares Action with Alien War One.
Top-down shooter action for the Atari Lynx handheld console. WANTED: Hot gun for hire. Travel to several exotic and dangerous places. Discover several exotic and dangerous aliens and kill them. Kill lots. For cash. Buy more weapons and kill again.
- 5
Beyond Lost Planets
Single-player alternative to Alien War One — playable solo, no multiplayer required. Shares Action with Alien War One.
Beyond Lost Planets is an intense Roguelike Dungeon Crawler Bullet Hell. Fight through enemies and bosses across procedural worlds. Everything from weapons and bullets to powerup and companions is represented with cards. Grow absurdly powerful and create wild, unique synergies every run!
- 6
The Glory Dungeon Raider
Single-player alternative to Alien War One — playable solo, no multiplayer required. Shares Action with Alien War One.
Enter the depths of a treacherous dungeon in The Glory Dungeon Raider, a fast-paced 2D roguelike where every run is a new challenge! Arm yourself with various weapons, and face off against deadly creatures. Do you have what it takes to survive?
- 7
Retro Classix: SRD - Super Real Darwin
Single-player alternative to Alien War One — playable solo, no multiplayer required. Shares Action with Alien War One.
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
Bullet Bunny
Single-player alternative to Alien War One — playable solo, no multiplayer required. Shares Action with Alien War One.
Bullet Bunny is a twin-stick shooter with rogue-like elements. Fend off an onslaught of enemies, level up, and create unique builds every run while trying to survive 500 seconds!