
Flat Mars is a single-player sci-fi horde FPS. Shoot your way through millions of demons and tear through the terrain with an arsenal of futuristic weapons to claim powerful relics.
60+ similar titles based on shared tags and player behavior. Themes include Action, Destruction, Singleplayer, Shooter.

Flat Mars is a single-player sci-fi horde FPS. Shoot your way through millions of demons and tear through the terrain with an arsenal of futuristic weapons to claim powerful relics.

Red Faction Guerrilla Re-Mars-tered
Red Faction: Guerrilla re-defines the limits of destruction-based game-play with a huge open-world, fast-paced guerrilla-style combat, and true physics-based destruction.

Red Faction
JOIN THE REVOLUTION! Lured to Mars by the Ultor Corporation's promise of a better life, thousands have come to seek their fortune and work for the massive mining company. But all is not as it seems. A deadly plague is sweeping through the barracks, and miners suffer daily abuse at the hands of the Ultor guards.
Red Faction: Guerrilla re-defines the limits of destruction-based game-play with a huge open-world, fast-paced guerrilla-style combat, and true physics-based destruction.
Why similar: Destruction 36.6%, Mars 30.8% ★, Physics 10.2%, Sci-fi 7.5%, Sandbox 5.4%
JOIN THE REVOLUTION! Lured to Mars by the Ultor Corporation's promise of a better life, thousands have come to seek their fortune and work for the massive mining company. But all is not as it seems. A deadly plague is sweeping through the barracks, and miners suffer daily abuse at the hands of the Ultor guards.
Why similar: Mars 32.2% ★, Destruction 29.4%, FPS 17.9%, Sci-fi 8.5%, Shooter 4.5%
Set 50 years after the climactic events of the original Red Faction, Red Faction: Guerrilla allows players to take the role of an insurgent fighter with the newly re-established Red Faction movement as they battle for liberation from the oppressive Earth Defense Force.
Why similar: Destruction 39.5%, Mars 26.7% ★, Physics 13.5%, Sci-fi 7.8%, Sandbox 4.7%
Do Not Destroy is a single-player first-person action game set in randomly generated, fully destructible cities. As the “Concerned Citizen,” you’ll fight against Pluto’s corporate invaders, scavenging their alien technology as you tear through your city and take it back.
Why similar: Destruction 36.4%, FPS 15.3%, Physics 12.7%, Sandbox 10.5%, Sci-fi 6.9%
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.
Why similar: Blood 25.8% ★, Destruction 18.7%, Gore 17.1%, Physics 12.4%, Sandbox 10.7%
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!!
Why similar: Destruction 28.4%, Blood 23.9% ★, Gore 12%, FPS 11.3%, Violent 8.6%
Check yourself out as a pilot of toy airplane. Play air combat in house rooms and garden. Fight with the uboot in the bathtub and with the battleship in the sink. Bomb the tanks column and the enemy base using batteries. Shoot the soldiers hiding behind the flowerpot.
Why similar: Destruction 39.4%, FPS 18.5%, Physics 17.6%, Shooter 11.2%, First-Person 7.5%
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?
Why similar: Destruction 18.2%, Demons 16.9%, FPS 14.8%, Bullet Hell 13.3%, Gore 10.2%
Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.
Why similar: Blood 27% ★, Destruction 22.2%, Sandbox 15.2%, Physics 14%, Gore 12.2%
Red Faction: Armageddon Path to War includes 4 new missions, 2 unlockable items and 10 new achievements!
Why similar: Destruction 45.4%, Mars 27.6% ★, Sci-fi 10.5%, Shooter 7%, Action 5.4%
Help aliens invade Earth in this procedurally-generated, infinite, 3D shooter game. Fully destructible cityscapes and a wide variety of destruction-wreaking weapons. Visit (rampage and destroy) cities of future Earth and Mars block by block. Chaotic battle scenes as rubble and vehicles pile up.
Why similar: Destruction 29.7%, Mars 27.1% ★, Physics 12.1%, Gun Customization 8.1% ★, Sandbox 6.3%
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.
Why similar: Blood 37.4% ★, Gore 16.7%, FPS 11.4%, Violent 10.8%, Bullet Hell 7%
Gore Rapture is an SC-Fi FPS Adventure!
Why similar: Destruction 24%, Blood 19% ★, Demons 15.5%, FPS 13.4%, Gore 8.1%
Pure Gore is a 2D physics action sandbox & people playground simulation, where you can build your own world.You can create or use pre-built vehicles, machinery, rockets, bombs and most importantly mutilate melons (fruit) with one of the over 100 elements. Its a steam port!
Why similar: Blood 29% ★, Destruction 23.2%, Physics 14.5%, Gore 13.3%, Sandbox 11.9%
Kitty Collapse is a FIRST-PERSON PHYSICS-BASED DESTRUCTION GAME! Spawn into chaotic levels filled with buildings and mischievous cats. Your goal? Cause maximum destruction using a variety of weapons to collapse structures and earn 5 stars. Master each level, perfecting the art of destruction!
Why similar: Destruction 43.2%, Physics 18.3%, FPS 14.1%, Sandbox 12.3%, First-Person 4.6%
FULL GAME NOW AVAILABLE. GO GET IT! This is the Free Survival Mode for Hellbound: a '90s style First Person Shooter, made 30 years later… but just a glimpse of the full game, go check it out!
Why similar: Blood 20.7% ★, FPS 18.4%, Demons 17.2%, Gore 15.4%, Violent 8.7%
Fast paced Bullet hell Roguelite FPS 🔴 Fight relentless machines driven by a hostile AI. Escape an endless cycle. Craft infinite weapon variants with deep gun modding. Forge deadly synergies. Carve your way out through enviro destruction /BREAK THE SYSTEM /BREAK FREE
Why similar: Destruction 27.9%, Bullet Hell 15.7%, FPS 13.9%, Physics 11.4%, Gun Customization 9.2% ★
Demolish or Die is an open world third person action game that takes place in a destructible, dystopian city.
Why similar: Destruction 50.5%, Bullet Hell 19.1%, Physics 10.1%, Shooter 7.3%, Action 6.1%
Twenty-second century Earth. Five years after the rebellion on Mars. For the last 15 years, Sopot, the corrupt dictator, has oppressed the people of the Commonwealth. His relentless pursuit of unification with the neighboring United Republic has left the country soaked in unnecessary bloodshed and poverty.
Why similar: Destruction 32.1%, FPS 30.2%, Sci-fi 11.8%, Shooter 9.9%, Action 9.3%
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.
Why similar: Blood 21.6% ★, Demons 18.4%, FPS 17.8%, Gore 12.9%, Violent 7.7%
Inherit your family's indebted company, demolish buildings, tear down walls and earn money, Wrecking Havoc is a demolition simulator game featuring fun physics demolition. Unlock tools, finish challenge-packed jobs, complete side quests, and cause mass destruction in this highly interactive world!
Why similar: Destruction 51.6%, Physics 20.3%, Sandbox 15%, Action 5.6%, First-Person 4.9%
A short story inspired by Robert Heinlein's: Starship Trooper
Why similar: Mars 30.5% ★, Destruction 27%, FPS 13.2%, Physics 11%, Sci-fi 9.4%
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.
Why similar: FPS 22.8%, Demons 20.3%, Gore 15.3%, Blood 13.7% ★, Shooter 8.8%
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.
Why similar: Blood 22.5% ★, FPS 16.5%, Destruction 14.7%, Gore 13.1%, Shooter 9.9%
Create a medication schedule for John. Press "Play" and let's hope he doesn't die before reaching the yellow area.
Why similar: Blood 27.9% ★, Destruction 25.9%, Physics 12.9%, Gore 11.1%, Sandbox 8.8%
Descend into the depths of the facility to uncover the cause behind the madness. Blow robotic creatures into pieces and fight through mind bending environmental challenges. Use various physics based mechanics to force your way through a lethal mixture of combat and puzzles.
Why similar: Destruction 43%, Physics 18.1%, FPS 15.2%, Shooter 9.3%, First-Person 6.1%
A highly customizable virtual stressball and physics sandbox about mutilating ragdolls in various ways using an overwhelming amount of weapons and tools.
Why similar: Blood 34.2% ★, Physics 18.9%, Sandbox 18.2%, Gore 15.8%, Violent 7.8%
IMHA is a first-person shooter set on an island ravaged by a demon invasion. Battle your way through endless hordes of enemies and survive the onslaught of relentless ghouls and demons.
Why similar: Blood 26.5% ★, Demons 20.4%, FPS 16%, Gore 11.6%, Shooter 8%
Escape the nightmarish human abattoir in this blood-soaked Horror FPS.
Why similar: FPS 24.2%, Blood 21% ★, Gore 15.7%, Shooter 11.9%, Violent 10.3%
Gates of Hell is a fast-paced first-person shooter where you must battle through relentless waves of Demonic terror!
Why similar: FPS 17.5%, Destruction 17.3%, Demons 17.1%, Bullet Hell 16.3%, Gore 13.3%
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.
Why similar: FPS 27.4%, Mars 20% ★, Demons 13.9%, Sci-fi 9.2%, Gore 8.9%
A goofy shooter with satisfying destruction: smash the clay world to pieces and fend off crazy cartoon creatures!
Why similar: Destruction 44.3%, FPS 23.2%, Physics 12.5%, Shooter 6.5%, First-Person 4.8%
A first person shooter set in a medieval world ravaged by the ungodly forces of the hellion. You are the Death Rattle - humanity's last hope against the forces of hell. Use your special gifts and divine powers to challenge the marches of hell and turn the tide against these devils and demons.
Why similar: Destruction 33.9%, Demons 18.2%, Gore 11.7%, FPS 10.6%, Shooter 8.6%
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!
Why similar: Blood 21.9% ★, FPS 15%, Demons 14.3%, Gore 13.3%, Violent 9%
Lead a squad of heroes on suicide missions into Hell's rifts. Face grotesque demons, shatter battlefields and weaponize gore in this physics-driven squad roguelite. Upgrade, synergize, survive — every run makes you deadlier. Only the strongest return from the abyss.
Why similar: Destruction 25.8%, Blood 21.2% ★, Demons 15.4%, Physics 11.6%, Gore 8.3%
A murderer's only shot at redemption. Shatter hell portals, stack divine relics into devastating builds, and descend deeper into hell until you're strong enough to face Satan himself. A roguelike FPS about salvation through overwhelming holy firepower.
Why similar: FPS 22.9%, Demons 21.4%, Shooter 14%, Sci-fi 13.5%, Gore 9.5%
Breach enemy stronghold in dread Siberian wastelands before insurgents can open gates to Samozbor dimension.
Why similar: Blood 24.4% ★, FPS 17.6%, Destruction 16.4%, Gore 13.1%, Violent 8.1%
Rogue agent Rico Rodriguez journeys to Solis, a huge South American world home of conflict, oppression and extreme weather conditions. Strap into your wingsuit, equip your fully customizable grappling hook, and get ready to bring the thunder!
Why similar: Destruction 43%, Physics 12.5%, Sandbox 12.3%, Shooter 8.7%, Gore 6.3%
Sad Ghouls is an arcade survival shooter. Kills increment the combo counter, Higher combo means better weapons which leads to more combo. Become a tool of destruction as you decimate endless forces of ghouls and compete with other player's highscores
Why similar: Destruction 26.6%, FPS 17.6%, Demons 17.1%, Bullet Hell 13.4%, Shooter 10.4%
Sophonce is a science fiction action horror first-person shooter that relies on philosophical undertones as the primary focus of the plot.
Why similar: FPS 27%, Shooter 15.9%, Sci-fi 15%, Gore 12.4%, Action 10%
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.
Why similar: Blood 21.2% ★, FPS 16%, Gore 13.1%, Physics 10.9%, Violent 8.8%
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.
Why similar: Destruction 27.4%, Blood 24% ★, Physics 13.2%, Sandbox 11.2%, Gore 9.8%
STANDBOX is a single-player physics sandbox about bullying a ragdoll. Shoot him, push him, watch him get back up until he doesn't.
Why similar: Blood 26.3% ★, Physics 19.8%, Sandbox 18%, Gore 14.8%, Violent 13.6%
Brutal boomer shooter FPS inspired by genre classics. Tear apart mutants, fight powerful bosses, and conquer the hell created by the MBSXII Sect in a dark world full of gore and chaos.
Why similar: Blood 25.9% ★, Demons 16.6%, Bullet Hell 15.6%, FPS 14.2%, Sci-fi 8.2%
In 2527 in a dystopian world, Jake, an engineer and bounty hunter, travels to the far reaches of the universe through a wormhole. With the help of his friend Roy, Jake's goal is to exterminate the replicator robots that threaten the Confederate planets.
Why similar: Blood 24.2% ★, Demons 18.1%, FPS 14.6%, Gore 11.1%, Sci-fi 8.1%
The space station suffered an unknown infection from space, the previously unknown X virus mutates, almost the entire crew of the station is infected, you need to stop the army of mutants until they break through to Earth and the judgment day begins!
Why similar: Blood 21.7% ★, Demons 18.5%, FPS 15.1%, Gore 11.3%, Sci-fi 10.2%
DOOM: The Dark Ages is the prequel to the critically acclaimed DOOM (2016) and DOOM Eternal that tells an epic cinematic story worthy of the DOOM Slayer’s legend. Players will step into the blood-stained boots of the DOOM Slayer, in this never-before-seen dark and sinister medieval war against Hell.
Why similar: Demons 23.9%, FPS 19.4%, Blood 17.6% ★, Gore 11.4%, Sci-fi 9.5%
Welcome to Volume I of a high adrenaline, fast-paced Boomer Shooter where you have only one goal: spread furious mayhem among the scumbags keeping you locked up. Stuck looking for an exit? Just punch through walls and then shoot the suckers behind them.
Why similar: Destruction 30.2%, Blood 23% ★, FPS 15.9%, Sci-fi 11.9%, Shooter 8.5%
You like Sci-Fi games? You like FPS? You like games with secret items, collectables? You like short Indie games? Then you will love this game! The game takes place in a big mothership captured by aliens. Your mission is to kill all the aliens, and blow up the mothership.
Why similar: Bullet Hell 19.1%, FPS 17.7%, Physics 14.6%, Gore 12.6%, Sci-fi 12.5%
Somewhere in deep space, at an apparently abandoned mining base on the asteriod Alpha Prime, something has gone terribly wrong. Miners were warned that the hubbardium they were mining was too dangerous, but the lure of unimaginable wealth was too strong.
Why similar: FPS 38.8%, Sci-fi 16.3%, Shooter 12.9%, Action 9.4%, Gore 9.1%
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.
Why similar: FPS 26.5%, Gore 20.9%, Violent 12.3%, Sci-fi 9.9%, Shooter 9.6%
The shareware legend DemonStar comes soaring back with new game modes and revised gameplay. Originally published in 1997, DemonStar has earned the Computer Gaming World's "Shareware Game of the Year 1999" award..
Why similar: Mars 37.1% ★, Bullet Hell 26.3%, Destruction 20.7%, Shooter 10.8%, Action 4.5%
Enter the chaos of zero-gravity warfare. Zero-G Combat is a fast-paced online multiplayer shooter built with Unreal Engine 5. Master 360-degree movement, utilize tactical sci-fi weaponry, and dominate the arena where up is down and nowhere is safe.
Why similar: Mars 46.6% ★, FPS 19.8%, Shooter 11.9%, Sci-fi 8.8%, Action 7.2%
Putrefaction is a First Person Shooter with horror elements, lots of enemies and weapons, heavily inspired by old-school shooter classics.
Why similar: FPS 27.1%, Blood 20.7% ★, Gore 16.2%, Shooter 8.3%, Sci-fi 7.7%
An arcade shoot-em-up with a retro science-fiction theme.
Why similar: Mars 36.2% ★, Destruction 30.6%, Bullet Hell 20.1%, Sci-fi 5.8%, Action 4.1%
Face off against hell forces in shooter "Grimwalker". Engage in thrilling combat with a variety of weapons and use your demon form to become even more powerful. Explore a world filled with secrets while managing your resources to survive.
Why similar: Blood 21.1% ★, FPS 18.5%, Demons 17.8%, Gore 11.6%, Shooter 9.2%
A chaotic sandbox destruction simulator where you summon meteors, lightning, fire, tornadoes and more to tear apart a dynamic city as stick figure builders struggle to survive and rebuild. Create devastation, trigger shockwaves and test the limits of the world.
Why similar: Destruction 61.2%, Physics 20%, Sandbox 17.2%, Singleplayer 1.5%
BRUTAL First Person Shooter focused on action, gore, and exploration. Fueled by adrenaline-pumping trap-metal soundtrack.
Why similar: Blood 30.5% ★, Demons 16.8%, FPS 15.6%, Gore 11.2%, Violent 7.4%