Games like Marimo-VS-IAS
Below are 13 hand-picked alternatives to Marimo-VS-IAS for fans of action, indie, casual, ranked by imho.run's hybrid recommender. Each pick is scored on three signals: collaborative filtering across millions of Steam libraries (which players who logged hours in Marimo-VS-IAS also play), content overlap on genres, categories, and storefront tags, and review-mined "vibe" embeddings that catch tonal similarity even when the genre label differs. Sections below cover closest matches, reviewer cross-mentions, and Steam Deck–friendly options. No login required — these picks work anchor-only.
About Marimo-VS-IAS: Cute marimo take down waves of invading alien species in this side-scrolling shooter! A 2.5D shooting game that blends classic side-scrolling action with strategic depth-based combat. Target priority and strategy are the keys to achieving high scores!

Players who liked Marimo-VS-IAS also play
Ranked by collaborative filtering across millions of Steam libraries plus content overlap on genres, tags, and developers.
- 1

G-Darius HD
Top pick for Marimo-VS-IAS fans by collaborative filtering across millions of Steam libraries. 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

Rigid Force Alpha
Second-strongest match for Marimo-VS-IAS fans by collaborative filtering across millions of Steam libraries. 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!
- 3

Planes, Bullets and Vodka
Third-strongest match for Marimo-VS-IAS fans by collaborative filtering across millions of Steam libraries. 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.
- 4

NeverAwake
Ranked #4 for Marimo-VS-IAS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Marimo-VS-IAS.
A girl who never wakes up. She has been fighting monsters in her dreams... "NeverAwake" is a nightmarish twin-stick shooter with a unique worldview and original game rules.
- 5

Astebreed: Definitive Edition
Ranked #5 for Marimo-VS-IAS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Marimo-VS-IAS.
Climb into the cockpit of an otherworldly war machine and fly into battle against a horrifying alien race bent on eradicating humanity to preserve their own civilization.
- 6

Thunder Wolves
Ranked #6 for Marimo-VS-IAS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Marimo-VS-IAS.
When this “wolf pack” strikes, you hear the thunder roll. The Thunder Wolves attack from the air. They are mercenaries, and the best helicopter pilots in the world. Every one of them is ready for action at all times—and ready to fight evil, wherever it lurks.
- 7

MULLET MADJACK
Ranked #7 for Marimo-VS-IAS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Marimo-VS-IAS.
MULLET MADJACK is a HIGH-OCTANE-ACTION SHOOTER that put you directly inside a CLASSIC ANIME. Pick your favorite weapon and reach the last floor; Beat your best time or try again. Haste makes waste… OF YOUR ENEMIES!
- 8

Rogue Stormers
Ranked #8 for Marimo-VS-IAS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Marimo-VS-IAS.
An action packed platform shooter mashed-up with roguelike and RPG elements, crazy 3D graphics and co-op multiplayer for one to 4 players.
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Head-to-head comparisons
Plays great on Steam Deck
Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.
- 1

Planes, Bullets and Vodka
Deck Verified — runs on Steam Deck out of the box. 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.
- 2

NeverAwake
Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Marimo-VS-IAS.
A girl who never wakes up. She has been fighting monsters in her dreams... "NeverAwake" is a nightmarish twin-stick shooter with a unique worldview and original game rules.
- 3

Astebreed: Definitive Edition
Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Marimo-VS-IAS.
Climb into the cockpit of an otherworldly war machine and fly into battle against a horrifying alien race bent on eradicating humanity to preserve their own civilization.
- 4

Thunder Wolves
Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Marimo-VS-IAS.
When this “wolf pack” strikes, you hear the thunder roll. The Thunder Wolves attack from the air. They are mercenaries, and the best helicopter pilots in the world. Every one of them is ready for action at all times—and ready to fight evil, wherever it lurks.
- 5

MULLET MADJACK
Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Marimo-VS-IAS.
MULLET MADJACK is a HIGH-OCTANE-ACTION SHOOTER that put you directly inside a CLASSIC ANIME. Pick your favorite weapon and reach the last floor; Beat your best time or try again. Haste makes waste… OF YOUR ENEMIES!
Frequently asked about Marimo-VS-IAS
- How much does Marimo-VS-IAS cost?
- Marimo-VS-IAS is listed on Steam at 8.99 USD (current store price; Steam sales may reduce this temporarily).
- What games are most similar to Marimo-VS-IAS?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Marimo-VS-IAS are G-Darius HD, Rigid Force Alpha, Planes, Bullets and Vodka.
- Who developed Marimo-VS-IAS?
- Marimo-VS-IAS was developed by JoyPlot.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Marimo-VS-IAS.
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