Top similar games like Flat Mars:

PROPAST is an old-school first-person shooter set in the brutal underground bunkers of the GTN - a Cold War regime that survived nuclear apocalypse by sealing itself below. As MO-535, an immortal engineer, break the cogs of oppression or become the Regime’s most feared enforcer.

A fast-paced FPS inspired by the classics of the genre. Take on hordes of monsters, master an arsenal tailored to each threat, uncover secrets and climb the global leaderboards for high scores and speedruns.

A fast-paced retro-FPS roguelite! As a member of a family of lore-hunting mystics you are summoned to a cursed village, drawn by rumors of a demonic portal. Dark magics have overwhelmed the village, It's up to you to rescue the survivors, grow your powers, and journey forth INTO THE PIT.

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.

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.

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.

Kill endless enemies and become a god among a plethora of enemies and bosses. Kill to progress, pick your upgrades and make unique builds as you fight the horde.

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?

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!!

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.

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.

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.

Hi-octane arena shooter where you face waves of nasty enemies. Use destructive weapons and high mobility to secure your spot on global leaderboards. Expect tight gunplay, satisfying kills, and meaningful upgrades.

Experience the Half-Life™ expansion packs like never before. Operation: Black Mesa features reimaginings of both Half-Life™ Opposing Force and Half-Life™ Blue Shift through two unique campaigns. How will you survive the Black Mesa Incident? It's time to choose.

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.

Explore the gloomy rooms of a sci-fi base as a doomed marine, the sole survivor of the portal experiment. Save humanity as you did in the 90s with your trusty shotgun, make your way through ominous corridors inhabited by the shadows of sinners and evil spirits.

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.

UNSANE 2 is an arcade style FPS. Run and gun or hack and slash your way through open world and dungeon depths on procedural maps. Leader boards track your best scores against zombies, skeletons, and other baddies.

Single Player First Person Shooter set in India. Uncover a massive conspiracy involving personal vendetta, corrupt politicians, and a web of international interests as you fight off men and machines in the streets of an unnamed Indian city.

Are you ready to explore the underworld and kill hundreds of monsters and demons in the process?

SPRAWL zero is a fast-paced shooter inspired by the Golden Age of 2000s FPS. Survive a brutal cyberpunk city collapsing under military rule and cult fanaticism. Use your Gravity-Gloves, augments, and an arsenal of over 40 weapons to crush those who stand in your way.

This is a fun shooting game that includes tower defense elements. You will control an air gunship equipped with three main types of weapons and several powerful special weapons. And leap your army to defeat thousands of monsters from other worlds.

TICKDOWN is a fast-paced FPS where you have two real-time hours to locate and defuse a weapon of mass destruction. Use the powers of Water, Earth, Fire, and Air to fight your way through hordes of deadly enemies to reach your objective.

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.

Experience the heart-pounding action of Void Bound, a fast-paced multiplayer FPS with round-based survival gameplay. Fight off hordes of demonic enemies that grow stronger with each passing wave as you and your friends try to survive.