
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, Shooter, Singleplayer.

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 36.2%, Mars 30.7% ★, Physics 10%, Sci-fi 7.4%, Sandbox 5.3%
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%
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%, FPS 14.9%, Physics 12.5%, Sandbox 10.4%, Sci-fi 6.7%
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 39.6%, Mars 26.9% ★, Physics 13.3%, Sci-fi 7.7%, Sandbox 4.7%
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 39.5%, FPS 18.6%, Physics 17.4%, Shooter 11.2%, First-Person 7.4%
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 7.1%, 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 29.8%, Mars 27.2% ★, Physics 12%, Gun Customization 8.1%, Sandbox 6.3%
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 43.3%, Physics 18.1%, FPS 14.2%, Sandbox 12.3%, First-Person 4.6%
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 30.3%, Sci-fi 11.7%, Shooter 9.9%, Action 9.4%
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 26.1%, Mars 19% ★, Demons 13.2%, Gore 12%, Sci-fi 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 28.2%, Bullet Hell 15.5%, FPS 14%, Physics 11.3%, Gun Customization 9.1%
Demolish or Die is an open world third person action game that takes place in a destructible, dystopian city.
Why similar: Destruction 50.7%, Bullet Hell 19%, Physics 10%, Shooter 7.3%, Action 6.1%
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 32.5%, Demons 17.5%, Gore 15.2%, FPS 10.2%, Shooter 8.3%
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 20.3%, Demons 18.8%, FPS 16.5%, Bullet Hell 14.7%, Shooter 9%
A short story inspired by Robert Heinlein's: Starship Trooper
Why similar: Mars 30.6% ★, Destruction 27%, FPS 13.2%, Physics 10.9%, Sci-fi 9.4%
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 51.8%, Physics 20.2%, Sandbox 15%, Action 5.7%, First-Person 4.9%
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 43.1%, Physics 18%, FPS 15.2%, Shooter 9.4%, First-Person 6%
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 25.9%, Gore 16.2%, Shooter 15.3%, Sci-fi 14.3%, Action 9.6%
"Muscles And Bullets" squad is a threat of all terrorists and evil dictators in the world. There are no such forces, walls and bunkers that could stop and protect against them. This game is a super-brutal mess of bullets, meat and dirt! Run-shoot-destroy!
Why similar: Gore 40.8%, Destruction 34.9%, Shooter 9.2%, Violent 8.7%, Action 6.4%
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 22.2%, Demons 20.7%, Shooter 13.6%, Sci-fi 13%, Gore 12.4%
A goofy shooter with satisfying destruction: smash the clay world to pieces and fend off crazy cartoon creatures!
Why similar: Destruction 44.3%, FPS 23.3%, Physics 12.4%, Shooter 6.5%, First-Person 4.8%
GoreBox is a chaotic physics-driven sandbox where creativity meets destruction. Use the Reality Crusher to spawn, manipulate, and obliterate anything. Customize, roleplay, or face devious creatures. In this world, your imagination rules, and chaos is your playground!
Why similar: Gore 22.8%, Physics 15.3%, Sandbox 14.4%, FPS 14.1%, Violent 10.1%
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 18.2%, FPS 17.1%, Gore 16.5%, Physics 13.9%, Sci-fi 12%
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 42.1%, Physics 12.1%, Sandbox 12%, Shooter 8.6%, Gore 8.4%
Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.
Why similar: Destruction 27.4%, Gore 25.1%, Sandbox 18.8%, Physics 17.2%, Violent 8.8%
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 24.4%, Gore 24.2%, Demons 21.7%, Shooter 9.4%, Sci-fi 7.1%
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 37.7%, Sci-fi 15.7%, Shooter 12.5%, Gore 12%, Action 9.2%
In Contort Effect they dive into a blurred world of reality. Use your ability of time manipulation and keep your enemies at a distance. You're going through a monstrosity of soulless robots against everyone. Wander through the levels with different weapons and kill your enemies.
Why similar: Gore 21.1%, FPS 19.2%, Bullet Hell 18%, Violent 11.3%, Shooter 9.3%
In a Action dystopian future, humanity's last hope lies within the Nexus Order. A covert organization that trains elite warriors known as Nexus Knights. Thrust into high-stakes simulations, you must navigate through procedurally generated mazes, defeat deadly zombies, cyborgs, robots, and more.
Why similar: Demons 23.6%, FPS 22%, Gore 21.6%, Sci-fi 10.6%, Shooter 10.2%
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: Gore 28%, FPS 25.9%, Violent 11.9%, Sci-fi 9.7%, Shooter 9.4%
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 17.7%, Demons 17.1%, Bullet Hell 13.2%, Shooter 10.4%
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: Gore 26.4%, FPS 21.2%, Demons 19.9%, Violent 10%, Shooter 8.2%
Become the unstoppable, destructive force at the center of Hell's eternal war. Fight in massive battles against thousands of demons that stretch to the horizon. Master brutal, high-speed combat and seamlessly command your own legions to carve a bloody path to the throne of Hell.
Why similar: Demons 27.2%, FPS 26%, Gore 10.5%, Shooter 10.4%, First-Person 8.9%
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 33.4%, Gore 17%, Physics 16%, Sandbox 13.7%, FPS 7.3%
Gore Rapture is an SC-Fi FPS Adventure!
Why similar: Destruction 28.5%, Demons 18.4%, FPS 16%, Gore 13.7%, Sci-fi 9.1%
Sharks of Mars: Prologue begins the story of an unlikely hero (you) who finds that little green men are the least of our worries on the red planet. Explore the Martian landscape, solve puzzles, and fight for your survival!
Why similar: Mars 41.3% ★, FPS 18.5%, Sci-fi 12%, Shooter 10%, Physics 6.4%
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 46.8% ★, FPS 19.5%, Shooter 12%, Sci-fi 8.8%, Action 7.3%
Play as a Elite soldier in ironclad atomic power armor, collect powerful weapons, crush endless waves of voidborn horrors and step into the realm portal, to finish their demigod masters. An old school FPS,collect items,unlock powerful upgrades,kill boss,find exits,and endless mode.
Why similar: FPS 23.1%, Gore 14%, Shooter 13.9%, Sci-fi 13.2%, Transhumanism 10.7% ★
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 37.2% ★, Bullet Hell 26.1%, Destruction 20.7%, Shooter 10.9%, Action 4.5%
An arcade shoot-em-up with a retro science-fiction theme.
Why similar: Mars 36.3% ★, Destruction 30.7%, Bullet Hell 19.9%, Sci-fi 5.8%, Action 4.2%
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!
Why similar: Bullet Hell 19.2%, Demons 18.4%, FPS 17.6%, Gore 13.5%, Shooter 10.3%
A chaotic sandbox destruction simulator where you summon meteors, lightning, fire, tornadoes, and more to tear apart a reactive city while stick figure builders struggle to survive and rebuild. Create devastation, trigger shockwaves, and push the simulation to its limits.
Why similar: Destruction 61.4%, Physics 19.8%, Sandbox 17.2%, Singleplayer 1.5%
Slow-paced shooter with strategy elements set in a procedural, fully destructible, post-apocalyptic world. Craft and fight with DIY weapons, build and demolish oil camps, meet silly characters, manage and upgrade your army, in order to beat The Vultures and discover what's behind The Sandstorm.
Why similar: Destruction 40.9%, Physics 17.4%, FPS 16.5%, Shooter 8.2%, Sandbox 4.5%
DEBIE ZONE - BAD DUDES HAVE TAKEN OVER YOUR TOWN. THE DoD SENDS IN SPECIAL AGENT DEBIE ZONE TO STOP THEM.
Why similar: Destruction 45%, Bullet Hell 27.6%, Shooter 15.9%, Action 9.9%, Singleplayer 1.6%
Do you like hot dogs? How about horseshoes? Hand grenades? (everyone likes hand grenades) Anyway, we've got all that, and guns. SO MANY GUNS. So if you like ordnance, meat, and far too many groan-worthy puns, this is the VR sandbox game for you.
Why similar: Destruction 19.6%, FPS 18.6%, Physics 17.6%, Sandbox 15.3%, Shooter 10.7%
Welcome to Project R.I.P. , control AI driven Agents in the battle against hordes of demons. Show your skills on the battlefield and on Global Leaderboards in this Singleplayer Horror Survival First Person Horde Shooter.
Why similar: Gore 27.3%, FPS 15.5%, Demons 14.6%, Violent 13.8%, Bullet Hell 9.2%
Photograph hallucinations of monsters to make them disappear. When the monsters become real, defend yourself and take more photos to complete your monster dex!
Why similar: Demons 34.5%, Gore 16.5%, FPS 15.5%, Action 10.5%, Shooter 9.5%
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: Gore 23%, Demons 21.7%, FPS 21%, Violent 9%, Shooter 8.4%
Destroy houses and relieve stress. It is also possible to compete with everyone in the score challenge
Why similar: Destruction 46.9%, FPS 13.5%, Physics 12.9%, Shooter 9.4%, Violent 6.3%
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: Gore 28.7%, Destruction 23.6%, Physics 15.3%, Sandbox 13.3%, Violent 10.6%
Toaster Arena is a first person multiplayer arena shooter where players battle it out on different maps and game modes. Use Advanced movement to traverse obstacles and gain the advantage on the battlefield.
Why similar: FPS 21.7%, Physics 17.9%, Gore 16.3%, Sci-fi 14.4%, Shooter 8.3%
A surreal First-Person Shooter where you destroy the haunting world you created to escape your guilt. Featuring almost full environment destruction.
Why similar: Destruction 47.9%, Bullet Hell 15.3%, FPS 13.8%, Shooter 10.4%, Action 4.9%
The government has been attacked by unidentified creatures, and you, as a mercenary, was hired by the government to clear all the threat. An FPS game which you can fight with those cunning creatures regardless of the weather, day and night change. Earn more and more reward to buy better weapons!
Why similar: FPS 29.8%, Gore 18.7%, Shooter 16.9%, Violent 12.5%, First-Person 10.5%
The critically-acclaimed and award-winning FPS franchise is back! Packed with tons of fast-paced, adrenaline-fueled single player and multiplayer action, Painkiller Overdose brings with it 6 innovative new demonic weapons, mind-bending physics, lightning-player maps, over 40 demented and sickly-twisted monsters from Hell and gigantic end...
Why similar: Gore 33.6%, FPS 30.7%, Violent 10.5%, Action 10.2%, Shooter 9.7%
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 35.3%, Gore 20.2%, FPS 14.1%, Violent 10.7%, Shooter 7.1%
Welcome to a world of pain. Heaven is once again in danger and threatened by a reckless army of hell spawn monsters - and they will stop at nothing.
Why similar: Gore 29.9%, FPS 23.3%, Shooter 15.6%, Violent 13.9%, Action 11.9%
GANZWORKER - truly oldschool style of gameplay. For all classic FPS lover.
Why similar: Gore 28.9%, FPS 15.4%, Action 15.1%, Violent 14.9%, Sci-fi 9.7%