Single-player games like Riley In The Abyss
Below are 8 single-player Steam games similar to Riley In The Abyss, 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 Riley In The Abyss page.
Ranked picks
- 1
The Moon 2044
Single-player alternative to Riley In The Abyss — playable solo, no multiplayer required. Shares Action and Adventure with Riley In The Abyss.
Explore a secret NCIS facility and discover its dark secret. Take on the role of the XV-11 unit and face hundreds of enemies in a dark sci-fi shooter inspired by old school hits!
- 2
Cyber Avenger
Single-player alternative to Riley In The Abyss — playable solo, no multiplayer required. Shares Action and Indie with Riley In The Abyss.
Cyber Avenger is a top-down action game where you take on the role of a highly skilled covert operative on a dangerous mission to stop a group of terrorists. You must navigate through five maps, facing a variety of enemies, including shotgunners, snipers, melee fighters, kamikazes, and more.
- 3
Jack Big Chin: Alien Invasion
Single-player alternative to Riley In The Abyss — playable solo, no multiplayer required. Shares Action and Indie with Riley In The Abyss.
Save humanity! Help Jack Big Chin defeat the alien invaders, in a hard action-adventure game with 3D platform elements, where you must improve your weapons and activate cannons to complete your missions.
- 4
Infested: Space Colony
Single-player alternative to Riley In The Abyss — playable solo, no multiplayer required. Shares Action and Indie with Riley In The Abyss.
Infested: Space Colony is an intense action top-down shooter in a dimly-lit environment where aliens roam in shadowy darkness. Explore various sections of the colony ship. Hunt down aliens before they hunt you down.
- 5
Humans Are Useless
Single-player alternative to Riley In The Abyss — playable solo, no multiplayer required. Shares Action and Indie with Riley In The Abyss.
A gang of nine aliens from another galaxy that were put to community service, want to clean the universe from what they think is the worst garbage: humans! Help them in this arcade game!
- 6
Edge Of Dead: Under A Uranium Sky
Single-player alternative to Riley In The Abyss — playable solo, no multiplayer required. Shares Action and Indie with Riley In The Abyss.
A bullet hell that let's you pickup and throw the furniture! Throw grenades and activate shields, stun enemies, shoot and dodge enemy fire and set the floor ablaze. Buy a porcupine shotgun from the shop or try a rancid burrito!
- 7
Neon Invaders
Single-player alternative to Riley In The Abyss — playable solo, no multiplayer required. Shares Action with Riley In The Abyss.
Neon Invaders will take you back to your gaming roots with its constant action and relentlessly brutal enemies. Absorb enemy shots of the same colour to trigger a flurry of fire to decimate the alien invaders. Dodge and Match your way to victory through 40 levels and 5 difficulty settings.
- 8
AST-Hero
Single-player alternative to Riley In The Abyss — playable solo, no multiplayer required. Shares Action and Indie with Riley In The Abyss.
Fight for survival in this top-down shoot ‘em up in space, featuring unique hand-drawn visuals and sounds. It offers a challenging experience that is easy to learn, but difficult to master.