Single-player games like Marimo-VS-IAS
Below are 8 single-player Steam games similar to Marimo-VS-IAS, 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 Marimo-VS-IAS page.
Ranked picks
- 1
G-Darius HD
Single-player alternative to Marimo-VS-IAS — playable solo, no multiplayer required. Shares Action with Marimo-VS-IAS.
You will see the creation of new lives... Capture enemies and fire them back at their allies as enormous beams of energy in this horizontally scrolling shooting game, featuring 5 versions of G-Darius with new features, enhancements, and Steam exclusive extras!
- 2
UKI-UKI-TENGOKU2
Single-player alternative to Marimo-VS-IAS — playable solo, no multiplayer required. Shares Action and Indie with Marimo-VS-IAS.
Retro 2D side-scrolling shooter with pixel art. Control a penguin (Laser), a fish (Firebreath), and a human (Railgun) to achieve a high score!
- 3
Rigid Force Alpha
Single-player alternative to Marimo-VS-IAS — playable solo, no multiplayer required. Shares Action and Indie with Marimo-VS-IAS.
Classic shoot’em up action in modern 3D! Blast off to take down hordes of infected aliens and dreadful machines programmed on waging an intergalactic war against mankind!
- 4
Planes, Bullets and Vodka
Single-player alternative to Marimo-VS-IAS — playable solo, no multiplayer required. Shares Action and Indie with Marimo-VS-IAS.
Fly through danger filled procedurally generated tunnels, avoiding thousands of enemies, on this throwback to the golden age of arcade games.
- 5
Furious Angels
Single-player alternative to Marimo-VS-IAS — playable solo, no multiplayer required. Shares Action and Indie with Marimo-VS-IAS.
Furious Angels is a brutal score attack shooter with different waves each day. Compete on the leaderboards, transform into a flying tank and shred the skies to pieces!
- 6
Death in the Water 2
Single-player alternative to Marimo-VS-IAS — playable solo, no multiplayer required. Shares Action and Indie with Marimo-VS-IAS.
Dodge and carve your way through swarms of terrifying sea creatures controlled by Death, a vicious giant mind-controlling Kraken that haunts your every move. Scavenge for hidden treasure to unlock weapons, and upgrades to help you in your fight for survival. Every dive reveals a new nightmare.
- 7
REVOLVER360 RE:ACTOR
Single-player alternative to Marimo-VS-IAS — playable solo, no multiplayer required. Shares Action and Indie with Marimo-VS-IAS.
The world really does revolve around you in this mind-bending shooter where changing your perspective could save your life.
- 8
DEVIL BLADE REBOOT
Single-player alternative to Marimo-VS-IAS — playable solo, no multiplayer required. Shares Action and Indie with Marimo-VS-IAS.
An immersive pseudo-3D shoot 'em up experience that pushes the limits of pixel art. Push your score higher with the innovative Berserk System: the closer they are, the more points you get!