Top similar games like Flat Mars:

Dreadfire is a thrilling ultraviolent FPS game. Shred your enemies with a large destructive arsenal. Destroy them until none remain. They won't stop until you're dead.

RAGDORE is a physics-driven sandbox where limbs fly, bones snap, and movement changes with every injury. Experiment with traps, crushers, trampolines, and more in colorful maps designed for creative destruction and dynamic ragdoll mayhem.

BRUTAL shooter focused on action, gore, and old school death metal music. Unleash your overpowered arsenal to goreblast hordes of ferocious beasts on your way through ancient dark forest.

Classic First Person Shooter style game. Like the good old days. An action game focused on speed, gore, guns, and metal music. Inspired by the 90s’ classics with modern visuals and audio!

A first-person shooter where you have 45 seconds to massacre fleeing ragdolls. Pile up bodies, earn points, and dominate the global leaderboard. The more brutal you are, the higher you score. Happy massacre!!

A massive demonic invasion has overwhelmed the Union Aerospace Corporation's (UAC) Mars Research Facility, leaving only chaos and horror in its wake. As one of only a few survivors, you must fight your way to hell and back against a horde of evil monsters.

UNLEASH HELL is a brutally hard wave based Arena FPS with fast paced action, plenty of blood-n-guns and more demons than you can shake a shotgun at. Think you have what it takes?

ENTER HELL and experience blood and torment the way God intended. Use shotguns, rocket launchers, and more to spread the joy of suffering to your friends and loved ones.

WRECK is a fast-paced shooter with a fully destructible environment. Demolish entire maps and create your own with the free level editor. Take down an oppressive regime in the singleplayer campaign, or fight against your friends in multiplayer.

Breach enemy stronghold in dread Siberian wastelands before insurgents can open gates to Samozbor dimension.

Gore Rapture is an SC-Fi FPS Adventure!

Become the ultimate badass in Trepang2: A gory, action-packed FPS set in the near future. Unleash all hell on your enemies, dodge bullets and leave a trail of destruction in this hardcore and frenetic shooter.

RAGE 2 brings together two studio powerhouses – Avalanche Studios, masters of open world insanity, and id Software, creators of the first-person shooter – to deliver a carnival of carnage where you can go anywhere, shoot anything, and explode everything.

Swing, dash, and leap through a relentless storm of bullets and laser beams. Armed with shotguns and explosive firepower, eliminate foes in a thrilling ballet of destruction. Master the power of the grappling hook for unstoppable, spider-like agility. Can you dodge, weave, and strike with precision?

Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression.

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!

MAXIMUM Action is a brutal and satisfying physics-based first person shooter influenced by Hong Kong cinema, heroic slow motion bloodshed, and old-school FPS ACTION.

BRUTAL First Person Shooter focused on action, gore, and exploration. Fueled by adrenaline-pumping trap-metal soundtrack.

Uploaded is a fast-paced, parkour, online multiplayer, and single-player shooter created by only one developer where you play as a robot with a human mind uploaded to it.

90's-style first-person shooter set in a large alien base filled with angry monsters.

An Indie arcade take on the zombie wave survival genre with boss fights and unique mechanics. You are not expected to survive.

Step into the boots of Grayson Hunt after a crash landing on an old resort planet forces him to make a hard choice: survival or revenge. Execute masterful kills with Bulletstorm: Full Clip Edition’s unique combat system that rewards you for performing the most creative and deadly kills imaginable.

A demonic invasion has overwhelmed the Union Aerospace Corporation's Mars research facility. As one of only a few survivors, you must fight your way to hell and back against a horde of demons in this award-winning horror/action FPS and reimagining of the original DOOM.

Hell’s armies have invaded Earth. Become the Slayer in an epic single-player campaign to conquer demons across dimensions and stop the final destruction of humanity. The only thing they fear... is you.

Blood, Fuel, Ammo & Speed is a fast-paced roguelite FPS action game. BFAS is focused on highly brutal, stylish, and smooth gameplay. Rip the Demons apart with your various satisfying weapons and sleek movement patterns. Power up your Operator with numerous stat upgrades and items.

Sinned is a fast-paced retro FPS game situated within the darkest depths of hell where you will fight demonic legions and Pandemonius, Lord of Hell himself!

Dragged into a dark conspiracy, explore and survive your way through the beginning of the end for the nation of Australia. Use your wits and instinct to stay alive in this 2000s-style first person liminal exploratory horror shooter set down under during the 1990s.

Ultimate Ragdoll Game is a Sandbox game without any limits. Have fun with ragdolls available in Steam Workshop and build your very own constructions using wide variety of blocks.

Obliterate heretics in the name of the Emperor in Warhammer 40,000: Boltgun 2! Play as Ultramarine Malum Caedo or Sister of Battle Nyra Veyrath in this sequel to retro FPS Warhammer 40,000: Boltgun with MORE enemies, MORE weapons, and NEW ways to purge!