Single-player games like Protocol: Assimilation
Below are 8 single-player Steam games similar to Protocol: Assimilation, 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 Protocol: Assimilation page.
Ranked picks
- 1
POPAPOM
Single-player alternative to Protocol: Assimilation — playable solo, no multiplayer required. Shares Action and Indie with Protocol: Assimilation.
A fast-paced action platformer roguelite with frantic combat, hundreds of modifying items, and dangerously charismatic monsters in the best arcade arena style. It’s time to make a POPAPOM!
- 2
Rockblaze
Single-player alternative to Protocol: Assimilation — playable solo, no multiplayer required. Shares Indie with Protocol: Assimilation.
Rockblaze is a 2.5D physics-based puzzle platformer. Move with thrusters or weapon recoil as you pilot your ship through a simulated futuristic prison. Upgrade your ship, experiment with builds, learn from failure, and uncover the secrets of the simulation.
- 3
Cat-Astrophy
Single-player alternative to Protocol: Assimilation — playable solo, no multiplayer required. Shares Action and Indie with Protocol: Assimilation.
Cat-Astrophy is a fast-paced Action Roguelite that combines frantic combat, precision platforming and unique builds across procedurally generated planets. Every run offers new ways to play, death is permanent. Can you survive the cat-astrophe?
- 4
CyberSushi
Single-player alternative to Protocol: Assimilation — playable solo, no multiplayer required. Shares Action and Indie with Protocol: Assimilation.
CyberSushi is a fast arcade roguelite where tiny cybernetic sushi heroes race through collapsing dimensions. Chain streaks to trigger WASABI, fill Sushi Surge, stack wild Sushi Hacks, build your roster, and chase one more impossible run.
- 5
Super Moncat
Single-player alternative to Protocol: Assimilation — playable solo, no multiplayer required. Shares Indie with Protocol: Assimilation.
Fly, dodge, and score points — this is a real test of reaction and concentration, where every new record feels like a big victory over the ruthless cosmos.
- 6
Stellar Orbit
Single-player alternative to Protocol: Assimilation — playable solo, no multiplayer required. Shares Action with Protocol: Assimilation.
Mine deeper than your fuel can carry you, while solar flares scramble your instruments. Strip an ore belt with the same guns that fight the pirate swarm, race your fuel home, and push each run deeper toward a dying star. A top-down mining-survival score chase.
- 7
Snake: Gridbreaker
Single-player alternative to Protocol: Assimilation — playable solo, no multiplayer required. Shares Action and Indie with Protocol: Assimilation.
There is no tutorial. And there won't be. I believe in you. I couldn't escape the Grid. Maybe you can. You are snake who eats apples. j/k You want to escape the grid loop. BUT the LOOP wants to keep You in.
- 8
Poko Poko Field
Single-player alternative to Protocol: Assimilation — playable solo, no multiplayer required. Shares Action and Indie with Protocol: Assimilation.
'Poko Poko Field' is a roguelite action game where the fluffy Pomeranian "Watapoko" conquers islands scattered across the world through knockback battles. Combine skills, build your strategy, and set out on an adventure to become the strongest across the islands.