Single-player games like Marimo-VS-IAS
Below are 9 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!
- 9
Marimo-VS-IAS: Our Friends
Single-player alternative to Marimo-VS-IAS — playable solo, no multiplayer required. Shares Action and Indie with Marimo-VS-IAS.
A 3D action where marimo moss ball fight to survive. Clear around 60 missions as you explore the lake, uncovering hidden items, information, side quests, and lurking threats… Use mission rewards and collected items to upgrade your marimo and take on powerful enemies!