Single-player games like All Systems Operational
Below are 9 single-player Steam games similar to All Systems Operational, 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 All Systems Operational page.
Ranked picks
- 1
Terraclysm Survivors
Single-player alternative to All Systems Operational — playable solo, no multiplayer required. Shares Action with All Systems Operational.
Terraclysm Survivors is a fast-paced action roguelike sidescroller. Earth is in peril, jump and attack through treacherous stages packed with enemy hordes while building the ultimate loadout. With up to 8 players online, defeat the invaders and survive in this apocalyptic and chaotic challenge!
- 2
TouHou Koishi's Enchanted Woods
Single-player alternative to All Systems Operational — playable solo, no multiplayer required. Shares Action with All Systems Operational.
「TouHou Koishi's Enchanted Woods」 is a Touhou fangame.This is a "reverse-construction" action rogue-lite.Koishi vs. Kokoro! But as the playable character, Koishi uses various enhancement cards to continuously strengthen Kokoro. Can she ultimately defeat the Kokoro she has built up herself?
- 3
Space Show edition 17
Single-player alternative to All Systems Operational — playable solo, no multiplayer required. Shares Action with All Systems Operational.
Space Show is an explosive space shoot’em up blending fast-paced arcade action with roguelite progression. Destroy waves of asteroids, battle enemy fleets, and defend Earth in an endless war where only survival… and glory matter!
- 4
Space God
Single-player alternative to All Systems Operational — playable solo, no multiplayer required. Shares Action with All Systems Operational.
Space God is a 'hyper retro neon' style top-down shooting game. Play in single player, online co-op mode, or online multiplayer. Don't stop, keep moving! and you might survive... maybe.
- 5
Chicken Invaders 5
Single-player alternative to All Systems Operational — playable solo, no multiplayer required. Shares Action with All Systems Operational.
Chicken Invaders puts you at the forefront of a battle against invading intergalactic chickens, bent on revenge for our oppression of Earth chickens. This time, the chickens have hatched a devious plan to block out sunlight and freeze Earth to death!
- 6
Revolution Ace
Single-player alternative to All Systems Operational — playable solo, no multiplayer required. Shares Action with All Systems Operational.
A deep, tactical shoot'em up. With every takedown, you’ll earn cash and xp to upgrade your ship and unlock new abilities. Online and local co-op. Unique versus mode. Realistic physics and water simulation.
- 7
Chicken Invaders 4
Single-player alternative to All Systems Operational — playable solo, no multiplayer required. Shares Action with All Systems Operational.
They came without warning, squawking menacingly, their ruffled feathers darkening the sun. Invading intergalactic chickens, out to punish humanity for our oppression of their earthly brethren. Now they're back, and they're having Earth for dinner!
- 8
Rush Rover
Single-player alternative to All Systems Operational — playable solo, no multiplayer required. Shares Action with All Systems Operational.
Rush Rover is a 2D top-down shooter game. Compared to other similar games of the genre, the shooting experience is closer to traditional shoot'em up games. It includes random map generation, unique weapons, lots of different enemies, exciting boss battles and a dynamic chiptune soundtrack.
- 9
Spike Trigger
Single-player alternative to All Systems Operational — playable solo, no multiplayer required. Shares Action with All Systems Operational.
Fast pace combat volleyball game with exploding balls and a caged arena. Fighters must spike the ball onto the opposing team's side to score points. Knocking out your opponents is encouraged!