Games like Flat Mars
If Flat Mars is your kind of game, the closest matches are HellRock Diver, Planet Zombie and Kill Cast — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About Flat Mars: Flat Mars is an action roguelike FPS. Shoot your way through millions of demons and tear through the terrain with an arsenal of futuristic weapons to claim powerful relics.
Players who liked Flat Mars also play
Steam players who put hours into Flat Mars also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
HellRock Diver
WHY THIS
Top pick for Flat Mars fans by collaborative filtering across millions of Steam libraries. Shares Action with Flat Mars.
Dig through Hell. Kill the horde. Choose your power. Descend deeper. A roguelike shooter-platformer where the ground is your weapon and every boss kill makes you stronger.
ActionSteam ↗Planet Zombie
WHY THIS
Second-strongest match for Flat Mars fans by collaborative filtering across millions of Steam libraries. Shares Action with Flat Mars.
A retro zombie shooter first-person bullet heaven that descends, level by level. 50 levels deep in 9 acts. 2,800 zombies on screen at once, kills counted per second. A fight against the zombies and for your mind.
Kill Cast
WHY THIS
Third-strongest match for Flat Mars fans by collaborative filtering across millions of Steam libraries. Shares Action with Flat Mars.
Born from classic arcade top down shooters like Smash TV and 80’s action thriller The Running Man! Welcome to Kill Cast Show! An FPS bullet raining shooter where you must survive endless wave of mutants. It's the gameshow of the future where contestants fight for survival.
TIME STRIKE
WHY THIS
Ranked #4 for Flat Mars fans by collaborative filtering across millions of Steam libraries. Shares Action with Flat Mars.
TIME STRIKE is a single-player FPS that gives you maximum control: stop time to dodge projectiles, rip down walls, line up a headshot, and flip flying debris into hapless enemies. CONTROL TIME. CONTROL SPACE.
Galactic Disharmony
WHY THIS
Ranked #5 for Flat Mars fans by collaborative filtering across millions of Steam libraries. Shares Action with Flat Mars.
A Sci-fi First-person shooter and Strategy game. Command and control your fleets and planets, build troops and extract resources in the solar maps' turn-based strategic mode. Then head into battle with your troops in large-scale first-person warfare to conquer planets.
SHROT
WHY THIS
Ranked #6 for Flat Mars fans by collaborative filtering across millions of Steam libraries. Shares Action with Flat Mars.
Welcome to SHROT! A fast, funny, and unapologetically stupid first-person boomer shooter where a Slavic trucker gets stuck in an alien apocalypse and handles it the only way he knows how: with beer, cigarettes, and unresolved anger issues.
MEAT PARADE
WHY THIS
Ranked #7 for Flat Mars fans by collaborative filtering across millions of Steam libraries. Shares Action with Flat Mars.
Kill endless enemies and become a god among a plethora of enemies and bosses. With FPS movement controls Kill to progress, pick your upgrades and make unique builds as you fight the horde.
GoreBox
WHY THIS
Ranked #8 for Flat Mars fans by collaborative filtering across millions of Steam libraries. Shares Action with Flat Mars.
GoreBox is a chaotic physics-driven sandbox where creativity meets destruction. Use the Reality Crusher to spawn, manipulate, and obliterate anything. Customize, battle with friends, roleplay, or face devious creatures. In this world, your imagination rules—and chaos is your playground!
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Doki Doki Literature Club!
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.
Indigo Park: Chapter 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Flat Mars.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
Counter-Strike:Global Offensive
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Flat Mars.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
Iron Snout
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Flat Mars.
Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.
Star Fetchers
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Flat Mars.
The introduction to a wild ride with gangsters and deep state conspiracy theories
Disfigure
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Flat Mars.
Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!
The Lab
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
Narrow it down
Head-to-head comparisons
Frequently asked about Flat Mars
- What games are most similar to Flat Mars?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Flat Mars are HellRock Diver, Planet Zombie, Kill Cast.
- Who developed Flat Mars?
- Flat Mars was developed by Stromb Interactive.
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 Flat Mars.
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