- #1 Alien Rage - Unlimited
97% matchMixed68% of 3,535 reviews2013
Dev: CI Games
Windows
Median: 1.1 hrsMean: 9.1 hrs≥1hr: 51%
Unleash a fury of powerful weapons as you blast your way through armies of Alien forces hell-bent on taking you down! Battle through 14 intense levels and prepare to face a barrage of beastly-sized bosses that will test your every skill. Each of your 10 weapons comes with two firing modes and you’ll need all of them!
Why similar: Action 41.4%, Shooter 36.6%, Sci-fi 22.1%
Why You'll Like It: It is a direct, arcade-focused sci-fi shooter that emphasizes relentless action and large-scale alien encounters.
- #2 Quake II
96% matchOverwhelmingly Positive95% of 9,960 reviews2007
Dev: id SoftwarePub: Bethesda Softworks
Windows
Median: 2.0 hrsMean: 7.8 hrs≥1hr: 63%
You are humanity’s last hope to stop the Strogg, a hostile alien race waging war against Earth. Play this military sci-fi FPS, now upgraded for modern platforms with improved visuals, new campaign content, online multiplayer/co-op, and more.
Why similar: Classic 57.7% ★, Action 14.3%, Shooter 14%, Sci-fi 13.9%
Why You'll Like It: A classic sci-fi shooter that provides the same visceral, fast-paced combat and industrial aesthetic found in the Incoming series.
- #3 Project: Snowblind
96% matchMostly Positive76% of 735 reviews2007
Dev: Crystal DynamicsPub: Square Enix
Windows
Median: 30 minMean: 4.0 hrs≥1hr: 36%
Experience the dramatic intensity of the frontlines of a war through the eyes of the first of a new breed of super soldiers in this gritty and epic first-person action game. An augmented super-soldier must stop a renegade regime from eradicating the civilized world. Hong Kong, 2065. 2nd Lt.
Why similar: Action 32.4%, Classic 28% ★, Shooter 23%, Sci-fi 16.6%
Why You'll Like It: This sci-fi shooter features intense combat and high-tech weaponry that aligns well with the futuristic warfare themes of the seed game.
- #4 Serious Sam HD: The First Encounter
95% matchVery Positive93% of 8,705 reviews2009
Dev: CroteamPub: Devolver Digital
Windows
Median: 4.0 hrsMean: 8.5 hrs≥1hr: 84%
Serious Sam HD: The First Encounter is a visually upgraded and fully Steam supported remake version of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS which was Gamespot's Game of the Year 2001 and which scored overall of 87% on Metacritic!
Why similar: Classic 43% ★, Action 26%, Shooter 22.5%, Sci-fi 8.6%
Why You'll Like It: This game perfectly captures the arcade-style, high-intensity combat against massive waves of enemies that defines the Incoming experience.
- #5 Painkiller: Black Edition
94% matchVery Positive89% of 2,251 reviews2007
Dev: People Can FlyPub: Prime Matter
Windows
Median: 1.6 hrsMean: 12.4 hrs≥1hr: 59%
Painkiller Black Edition includes the expansion pack Battle Out of Hell, featuring 10 additional single-player levels and many new villains.
Why similar: Classic 58.4% ★, Action 21.3%, Shooter 20.3%
Why You'll Like It: It offers a fast-paced, arena-style shooting experience that mirrors the arcade intensity and focus on destruction found in the seed game.
- #6 Quake 4
94% matchVery Positive88% of 3,762 reviews2011
Dev: RavenSoftPub: Bethesda Softworks
Windows
Median: 1.8 hrsMean: 6.7 hrs≥1hr: 58%
As part of the elite Rhino Squad, you must spearhead Earth’s military invasion of a hostile alien homeworld. But, in this desperate war for humanity’s survival against an unrelenting enemy, you may discover that the only way to defeat them...is to become one of them.
Why similar: Classic 38.3% ★, Sci-fi 21.4%, Shooter 21.2%, Action 19.1%
Why You'll Like It: This title delivers a gritty, sci-fi FPS experience with heavy weaponry and intense battles against alien forces.
- #7 Eradicator
93% matchVery Positive84% of 110 reviews2014
Dev: Accolade, IncPub: Atari
Windows · Mac · Linux
Median: 12 minMean: 3.5 hrs≥1hr: 20%
Explode into action!
Why similar: Classic 57.6% ★, Action 42.4%
Why You'll Like It: This classic FPS features the same fast-paced, arcade-style movement and sci-fi combat mechanics as the seed game.
- #8 Serious Sam 3: BFE
91% matchVery Positive88% of 28,337 reviews2011
Dev: CroteamPub: Devolver Digital
Windows · Mac · Linux
Median: 4.5 hrsMean: 13.4 hrs≥1hr: 90%
Serious Sam 3: BFE is a prequel to the original indie fast action FPS and Game of the Year sensation - Serious Sam: The First Encounter!
Why similar: Action 53.5%, Shooter 31.5%, Sci-fi 15%
Why You'll Like It: It continues the tradition of relentless, arcade-style shooting against overwhelming odds in a high-action environment.
- #9 E.T. Armies
92% matchMixed50% of 329 reviews2016
Dev: Raspina StudioPub: Merge Publishing
Windows
Median: 4.3 hrsMean: 4.9 hrs≥1hr: 93%
E.T. Armies is an action-packed, fast-paced, science-fiction first person shooter. The game takes place in a future where Earth has been reduced to ashes; It is now home to a new nation that hungers only for war. Prepare yourself to rise and defend against the invasion of the Forsaken.
Why similar: Action 55%, Sci-fi 45%
Why You'll Like It: A sci-fi FPS that focuses on arcade-style combat and defending against alien forces.
- #10 Hard Reset Redux
91% matchVery Positive81% of 2,339 reviews2016
Dev: Flying Wild HogPub: Good Shepherd Entertainment
Windows
Median: 4.1 hrsMean: 6.3 hrs≥1hr: 88%
Hard Reset Redux is an action-packed and hardcore single-player shooter which embraces the best qualities that the genre has it offer. It includes over-the-top destruction, loads of enemies, great weapon variety, a challenging campaign and a beautifully realized cyberpunk setting.
Why similar: Action 46.6%, Shooter 35.3%, Sci-fi 18.1%
Why You'll Like It: A high-octane, sci-fi arcade shooter that focuses on fast movement and destroying waves of robotic enemies.
- #11 Galactic Force
90% matchMostly Positive72% of 89 reviews2018
Dev: FreezeNova
Windows
Galactic Force is a sci-fi FPS loaded with frantic action and lots of firepower.
Why similar: Action 50.1%, Sci-fi 26.4%, Shooter 23.5%
Why You'll Like It: This indie sci-fi shooter captures the simple, arcade-style action of defending against extraterrestrial threats.
- #12 Bulletstorm: Full Clip Edition
89% matchVery Positive89% of 9,268 reviews2017
Dev: People Can FlyPub: Gearbox Publishing
Windows
Median: 4.5 hrsMean: 8.5 hrs≥1hr: 87%
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: Action 42.1%, Shooter 30.8%, Sci-fi 27.1%
Why You'll Like It: This game emphasizes creative, arcade-style destruction and high-speed combat that feels like a modern evolution of the genre.
- #13 Duke Nukem 3D: 20th Anniversary World Tour
88% matchVery Positive84% of 6,283 reviews2016
Dev: Nerve Software, Gearbox Software, LLCPub: Gearbox Publishing
Windows
Median: 2.7 hrsMean: 9.7 hrs≥1hr: 77%
Frag like it’s 1996 – this time with even more asses to kick! Join the world’s greatest action hero in Duke Nukem 3D: 20th Anniversary World Tour as he saves Earth once again, kicking alien ass and saving babes across the globe along the way.
Why similar: Classic 68.4% ★, Shooter 17.5%, Action 14.1%
Why You'll Like It: It provides the quintessential retro arcade-shooter experience with a focus on fast action and classic level design.
- #14 Action Alien
89% matchMixed56% of 496 reviews2015
Dev: Devdan GamesPub: Conglomerate 5
Windows
Median: 3.0 hrsMean: 4.9 hrs≥1hr: 92%
Jump into the action and battle your way through hordes of aliens from deserts to tropical islands with fully destructible environments !
Why similar: Action 100%
Why You'll Like It: A straightforward, action-packed sci-fi shooter that focuses on arcade-style enemy destruction.
- #15 Turok
86% matchVery Positive93% of 4,085 reviews2015
Dev: Iguana EntertainmentPub: Nightdive Studios
Windows · Mac · Linux
Median: 1.4 hrsMean: 7.4 hrs≥1hr: 57%
A world where time has no meaning - and evil knows no bounds. Torn from a world long gone, the time traveling warrior Turok has found himself thrust into a savage land torn by conflict.
Why similar: Classic 58.4% ★, Action 18.6%, Shooter 17.1%, Sci-fi 5.9%
Why You'll Like It: A classic sci-fi shooter that features intense combat and a focus on arcade-style exploration and enemy engagement.
- #16 Descent
87% matchVery Positive96% of 471 reviews2014
Dev: ParallaxPub: Interplay Inc.
Windows · Mac · Linux
Median: 12 minMean: 2.1 hrs≥1hr: 25%
Welcome to Descent™ - 27 levels of the most mind-bending, stomach-churning action game ever. Featuring true 3-Dimensional worlds and six degrees of freedom.
Why similar: Classic 66.8% ★, Shooter 14.2%, Action 12%, Sci-fi 7%
Why You'll Like It: A classic sci-fi arcade shooter that focuses on high-speed, multi-directional combat in futuristic environments.
- #17 Starship Troopers: Ultimate Bug War!
79% matchVery Positive94% of 994 reviews2026
Dev: Auroch DigitalPub: Dotemu
Windows
Median: 3.0 hrsMean: 5.7 hrs≥1hr: 76%
Lock and load into the Starship Troopers universe and join the Mobile Infantry in the most realistic depiction of war ever made! Experience an original story in this action-packed, first-person retro shooter. Would you like to know more?
Why similar: Sci-fi 48.9%, Shooter 28.7%, Action 22.4%
Why You'll Like It: A sci-fi shooter that captures the essence of defending against massive alien swarms in an arcade-style format.
- #18 Red Faction
85% matchVery Positive86% of 2,916 reviews2009
Dev: VolitionPub: Deep Silver
Windows
Median: 1.2 hrsMean: 44.6 hrs≥1hr: 53%
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: Classic 48.8% ★, Sci-fi 19.5%, Action 19.5%, Shooter 12.2%
Why You'll Like It: This sci-fi shooter offers a classic feel with destructible environments and intense combat scenarios.
- #19 Forbidden Ingress
84% matchMostly Positive72% of 249 reviews2020
Dev: Strange_Indie_Team
Windows
Our world is in danger! Grab your gun and stop these uninvited guests!
Why similar: Action 44.3%, Shooter 34.6%, Sci-fi 21%
Why You'll Like It: An indie FPS that emphasizes arcade-style action and sci-fi exploration.
- #20 Alien Death Mob
84% matchVery Positive94% of 50 reviews2021
Dev: Pug Fugly GamesPub: Thalamus Digital
Windows
Aliens have invaded Earth! Towns, cities, deserts, they're everywhere! Take on the role of Earth's last super soldier and confront the alien menace in this intense twin stick shooter!
Why similar: Action 33%, Shooter 29.5%, Classic 22.8% ★, Sci-fi 14.7%
Why You'll Like It: This game provides a high-intensity, arcade-style combat experience against alien hordes.
- #21 DOSMan: Space Aliens in Space!
81% matchVery Positive85% of 73 reviews2024
Dev: DOSMan Games
Windows
Planet DOS is under attack by Space Aliens, DOSMan needs to fend them off and defend his home planet!
Why similar: Shooter 45.8%, Action 35.3%, Sci-fi 18.9%
Why You'll Like It: A retro-inspired shooter that focuses on the classic arcade feel of fighting aliens in space.
- #22 Ion Fury
82% matchVery Positive93% of 6,682 reviews2019
Dev: Voidpoint, LLCPub: 3D Realms
Windows · Linux
Median: 4.7 hrsMean: 9.8 hrs≥1hr: 81%
3D Realms, creators of Duke Nukem 3D, Prey, and Max Payne, team up with Voidpoint to bring back the legendary Build Engine, famous for classic shooters like Duke Nukem 3D, Shadow Warrior, and Blood. Fast-paced FPS combat across huge, secret-packed levels. Ion Fury is the real deal!
Why similar: Sci-fi 37.6%, Shooter 37.2%, Action 25.2%
Why You'll Like It: A modern take on the classic arcade-shooter formula that prioritizes speed, weapon variety, and intense combat.
- #23 Battle For The Sun
86% matchMostly Negative38% of 66 reviews2015
Dev: Appsolutely Studios
Windows · Mac · Linux
Battle for the Sun is an action-packed, first-person shooter documenting the realities of war seen through the eyes of a special forces soldier in a world under alien attack. We find ourselves abruptly thrown into an adventure as a talented soldier carrying out his duty in this epic war.
Why similar: Action 100%
Why You'll Like It: This indie FPS focuses on arcade-style combat and defending against alien invasions.
- #24 Shadow Warrior Classic Redux
83% matchVery Positive90% of 3,592 reviews2013
Dev: General ArcadePub: Devolver Digital
Windows · Mac · Linux
Median: 2.1 hrsMean: 5.4 hrs≥1hr: 82%
The definitive version of the cult classic shooter, Shadow Warrior Classic Redux features remastered visuals and two massive expansion packs. Corporations rule every facet of life in a near-future Japan and employ Shadow Warriors, one-man armies of unparalleled skill, to protect their power and forcefully remove all opposition.
Why similar: Classic 68.9% ★, Shooter 15.8%, Action 15.4%
Why You'll Like It: It captures the fast-paced, arcade-style shooting and retro aesthetic that defined the era of the seed game.
- #25 DUSK
81% matchOverwhelmingly Positive97% of 24,919 reviews2018
Dev: David SzymanskiPub: New Blood Interactive
Windows · Mac · Linux
Median: 3.7 hrsMean: 8.0 hrs≥1hr: 82%
Battle through an onslaught of mystical backwater cultists, possessed militants & even darker forces as you attempt to discover just what lurks beneath the Earth in this retro FPS inspired by the '90s legends.
Why similar: Classic 53.7% ★, Shooter 31.1%, Action 15.2%
Why You'll Like It: This game masterfully recreates the fast, fluid, and arcade-focused combat of 90s shooters.
- #26 Rebel Forces
82% matchVery Positive82% of 1,629 reviews2018
Dev: FreezeNova
Windows
Are you ready to be the ultimate soldier and fight until you defeat all of your enemies?
Why similar: Action 52.7%, Shooter 47.3%
Why You'll Like It: A fast-paced indie shooter that provides simple, arcade-style combat in a sci-fi setting.
- #27 AMID EVIL
78% matchVery Positive93% of 7,565 reviews2019
Dev: IndefatigablePub: New Blood Interactive
Windows
Median: 3.2 hrsMean: 5.9 hrs≥1hr: 78%
A retro FPS for the ages! Once branded a HERETIC. Now YOU have been chosen as our champion! Reclaim our sacred weapons. Take back our ancient lands. If you can stand... AMID EVIL.
Why similar: Sci-fi 38.9%, Shooter 36.6%, Action 24.5%
Why You'll Like It: A modern retro-shooter that emphasizes high-speed movement and arcade-style combat against waves of enemies.
- #28 Cyborg Invasion Shooter
80% matchMixed46% of 58 reviews2017
Dev: Tero Lunkka
Windows
You are the only soldier that can save the world: Collect all the artifacts, kill several cyborgs and save the world
Why similar: Action 100%
Why You'll Like It: It features arcade-style combat against waves of cyborgs, matching the theme of the seed game.
- #29 Destructivator 2
77% matchVery Positive96% of 55 reviews2020
Dev: Pug Fugly GamesPub: Thalamus Digital
Windows
A platform shooter that brings 90's gaming smashing into your face! Blast and insta-melee your way through hordes of alien soldiers, robots, bosses and loads more. Fight on foot, in a fighter or in a bomber. Take on bosses and ensure that the alien menace won't threaten Earth ever again!
Why similar: Shooter 49.6%, Action 36.7%, Sci-fi 13.7%
- #30 Horizon Shift
78% matchMostly Positive77% of 330 reviews2015
Dev: Flump StudiosPub: Funbox Media Ltd
Windows
Median: 3.1 hrsMean: 4.1 hrs≥1hr: 94%
Horizon Shift is an explosive wave based single screen shooter with a ton of new ideas and platformer elements. Do what it takes to protect your horizon from the ever encroaching enemy attack!
Why similar: Action 100%
- #31 Chicken Invaders 1
72% matchVery Positive92% of 61 reviews2025
Dev: InterAction studios
Windows
Save Earth from an invasion of intergalactic chickens! Finger-blistering arcade shooting action for one or two players.
Why similar: Action 55%, Shooter 45%
- #32 STAR WARS™ Dark Forces (Classic, 1995)
76% matchVery Positive89% of 3,050 reviews2009
Dev: LucasArts
Windows · Mac
Median: 24 minMean: 17.4 hrs≥1hr: 31%
Behind a veil of secrecy the evil Empire is creating a doomsday army - one that, if finished, will become the final cog in the Empire's arsenal of terror and domination. Your Mission? Join the Rebel Alliance's covert operations division, infiltrate the Empire.
Why similar: Classic 53.7% ★, Sci-fi 16.1%, Action 15.6%, Shooter 14.7%
- #33 Rigid Force Alpha
75% matchMostly Positive80% of 133 reviews2018
Dev: com8com1 Software
Windows
Median: 2.8 hrsMean: 4.7 hrs≥1hr: 76%
Classic shoot’em up action in modern 3D! Blast off to take down hordes of infected aliens and dreadful machines programmed on waging an intergalactic war against mankind!
Why similar: Shooter 40.6%, Sci-fi 33.2%, Action 26.1%
- #34 DEEP SPACE ANOMALY
75% matchMostly Positive78% of 107 reviews2019
Dev: DRM GMZ
Windows
Space. Anomalies. Throw down a challenge to mad alien mutants in dynamic firefights with continuous injection of adrenaline! Get ready for the most unforgettable and enchanting space confrontation of all time!
Why similar: Action 46%, Sci-fi 35.5%, Shooter 18.5%
- #35 Hostile Waters: Antaeus Rising
76% matchMostly Positive76% of 467 reviews2014
Dev: Rage SoftwarePub: Funbox Media Ltd
Windows
Median: 3.5 hrsMean: 4.0 hrs≥1hr: 93%
In 2032 an Earth that knows only peace is forced to relearn the art of war. Twenty years have passed since the population of Earth did a fine job of destroying nearly everything in one final struggle for power by the politicians and military leaders.
Why similar: Classic 44.2% ★, Sci-fi 25.6%, Action 20.6%, Shooter 9.6%
- #36 Steel Storm: Burning Retribution
77% matchMixed60% of 369 reviews2011
Dev: Kot in Action Creative Artel
Windows · Linux
Median: 4.2 hrsMean: 4.2 hrs≥1hr: 81%
Control an advanced hovertank, packed with the most advanced and sophisticated weapons as you fight against extraterrestrial invaders.
Why similar: Shooter 40.3%, Action 37.9%, Sci-fi 21.8%
- #37 ESCHATOS
74% matchVery Positive97% of 298 reviews2015
Dev: QutePub: KOMODO
Windows
Median: 2.9 hrsMean: 4.2 hrs≥1hr: 71%
An alien menace has descended on Earth! Defend the world from UFO invasion in this superb arcade shooter from Qute. Use your weapons effectively, deflect enemy bullets with your shield, and recapture the Moon from alien infestation!
Why similar: Action 100%
- #38 Defend Earth: Xenos Survivors
71% matchVery Positive80% of 56 reviews2023
Dev: ReijaPub: indie.io
Windows
You are Earth's last line of defense in a relentless alien invasion. Experience intense top-down roguelite action across diverse landscapes, fighting invaders with a versatile arsenal. Outsmart, outgun, and survive your foes. Every run increases the challenge - so adapt, evolve, dominate!
Why similar: Sci-fi 59.1%, Action 40.9%
- #39 Let Them Come
73% matchVery Positive84% of 1,353 reviews2017
Dev: Tuatara GamesPub: Versus Evil
Windows · Mac
Median: 2.8 hrsMean: 3.7 hrs≥1hr: 83%
Let Them Come is a fast paced pixel art shoot ‘em up. Twitchy trigger fingers and focused battle tactics are the order of the day as wave after wave of alien-like creatures try to take you down.
Why similar: Shooter 40%, Action 32.9%, Sci-fi 27.1%
- #40 Exophobia
69% matchVery Positive88% of 136 reviews2024
Dev: Zarc AttackPub: PM Studios, inc.
Windows
Explore and fight your way through a crashed human spaceship infested with relentless hordes of aliens as you become more powerful with exciting weapon upgrades and powerups in this retro inspired first-person shooter.
Why similar: Shooter 53.3%, Sci-fi 46.7%
- #41 Let Them Come: Onslaught
66% matchVery Positive89% of 212 reviews2025
Dev: Tuatara GamesPub: Digital Bandidos
Windows
Survive the relentless offensive of the alien horde in Let Them Come: Onslaught, a sci-fi survival roguelite. The pursuit of the perfect build and an ever-expanding arsenal of abilities are the keys to your success.
Why similar: Sci-fi 58.1%, Action 41.9%
- #42 Expendable
73% matchVery Positive86% of 77 reviews2018
Dev: Rage SoftwarePub: Funbox Media Ltd
Windows
Somewhere in the future a hostile alien race conquers most of the galaxy. Scientists developed the “Millennium Soldier” project by cloning two super-soldiers. Armed with blasters they will battle scores of monsters, robots and boss aliens to save us and get a well-earned reward.
Why similar: Classic 56.3% ★, Action 26.2%, Sci-fi 17.4%
- #43 AngerForce: Reloaded
73% matchVery Positive91% of 382 reviews2017
Dev: Screambox Studio
Windows · Mac
Median: 3.8 hrsMean: 4.5 hrs≥1hr: 92%
AngerForce: Reloaded is an action-packed vertically scrolling shoot'em up game that pays homage to the classics of 90’s arcades. This high octane experience is set against the backdrop of a 19th century human world that has seen the outbreak of a robot rebellion.
Why similar: Shooter 100%
- #44 STAR WARS™: Dark Forces Remaster
67% matchVery Positive90% of 1,475 reviews2024
Dev: Nightdive Studios
Windows
Median: 1.7 hrsMean: 4.3 hrs≥1hr: 60%
The evil Empire is currently creating a doomsday army behind a veil of secrecy. However, they are no match for the Rebel Alliance's covert operations division. Your mission is to infiltrate the Empire and put an end to their plans for terror and domination.
Why similar: Shooter 31%, Sci-fi 26.1%, Classic 23.9% ★, Action 19.1%
- #45 Space Wars
71% matchVery Positive83% of 122 reviews2020
Dev: High and WidePub: khukhrovr
Windows
Defend Earth's orbital station from alien invaders in SPACE WARS, a fast-paced arcade shooter. Customize your ship, upgrade weapons, and battle through intense levels to save humanity in this action-packed space adventure.
Why similar: Shooter 100%
- #46 Space Invaders Extreme
71% matchVery Positive88% of 261 reviews2018
Dev: TAITO CORP.Pub: KOMODO
Windows
Median: 1.9 hrsMean: 3.0 hrs≥1hr: 64%
The critically acclaimed update to the Space Invaders franchise has arrived to invade Steam with greatly improved graphics and audio! Packed with pulsing, vibrant visuals enhanced further by interactive sound. The invaders have evolved, the question is: can you keep up?
Why similar: Shooter 37.1%, Sci-fi 36.7%, Action 26.2%
- #47 KILL KILL KILL KILL
66% matchVery Positive88% of 103 reviews2024
Dev: Galactic Geckon
Windows
KILL KILL KILL KILL - Intense arena shooter featuring a space warrior annihilating invaders from the distant cosmos. You're the last line of defense against their domination. Destroy them with diverse weapons, tearing through hordes of enemies.
Why similar: Action 78.5%, Shooter 21.5%
- #48 Viscerafest
63% matchVery Positive85% of 687 reviews2025
Dev: Acid Man GamesPub: Fulqrum Publishing
Windows · Linux
Median: 1.1 hrsMean: 5.1 hrs≥1hr: 55%
Viscerafest is a Sci-Fi Fantasy Singleplayer Arena FPS with minor Collectathon elements. Fight through hordes of aliens and eldritch monstrosities wielding a slew of powerful weapons, juggling your resources, and exploring over 23 intricately designed hand-crafted levels.
Why similar: Shooter 46.3%, Sci-fi 27.5%, Action 26.2%
- #49 XOL: Space Mech Wars
63% matchVery Positive91% of 70 reviews2025
Dev: Michigames
Windows
Mech FPS game in all directions of space; follow the story and contribute to the fight for your homeland! Survive the space wars as an up-and-coming soldier with the toughest warriors around!
Why similar: Sci-fi 38.9%, Shooter 31.2%, Action 29.9%
- #50 Quake III Arena
69% matchOverwhelmingly Positive96% of 3,982 reviews2007
Dev: id Software
Windows
Median: 36 minMean: 14.3 hrs≥1hr: 42%
The greatest warriors of all time and space have been summoned to battle for the amusement of an ancient alien race. Wield a variety of guns and power-ups as you fight for glory against ruthless combatants in this fast-paced single-player and multiplayer FPS.
Why similar: Classic 62.7% ★, Action 16.4%, Shooter 14.6%, Sci-fi 6.3%
- #51 Particle Wars
69% matchVery Positive94% of 52 reviews2019
Dev: HaDe GamesPub: My Way Games
Windows
Particle wars is a super cool and colorful survival shooter with crazy particle effects, tons of weapons and power-ups! Beat the levels with different approaches and get some great highscores at the infinite mode!
Why similar: Action 100%
- #52 Undercroft Warriors
63% matchMostly Positive79% of 459 reviews2024
Dev: Fuzzy
Windows
Crush the forces of hell and get a high score in this addictive, action-packed, arcade-inspired twin-stick shooter!
Why similar: Shooter 63.1%, Action 36.9%
- #53 ARCADE GAME SERIES: GALAGA
68% matchVery Positive91% of 912 reviews2016
Dev: BANDAI NAMCO Studios Inc.Pub: BANDAI NAMCO Entertainment
Windows
Median: 12 minMean: 2.3 hrs≥1hr: 25%
First appearing in arcades in 1981, the masterpiece GALAGA finally comes to Steam! Move the fighter left and right and destroy the waves of incoming aliens!
Why similar: Classic 70.8% ★, Action 22.9%, Shooter 6.3%
- #54 2112TD: Tower Defense Survival
64% matchVery Positive88% of 428 reviews2023
Dev: Refinery Games
Windows
Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defenses in this epic, old school RTS inspired sci-fi adventure.
Why similar: Sci-fi 61.7%, Action 38.3%
- #55 Bladestar
70% matchMostly Positive70% of 107 reviews2016
Dev: Fair Weather Studios
Windows
Median: 4.0 hrsMean: 5.5 hrs≥1hr: 97%
Bladestar is a sci-fi cinematic action shooter featuring visually rich worlds with potentially endless enemies on each level. Defend the galaxy flying a Manta Starfighter through asteroid, mine, and debris fields while battling pirates, rebels, and aliens.
Why similar: Action 27.7%, Classic 26% ★, Sci-fi 24.2%, Shooter 22.1%
- #56 Perilous Warp
66% matchMostly Positive74% of 373 reviews2020
Dev: Crystice Softworks
Windows · Mac · Linux
Median: 2.2 hrsMean: 4.4 hrs≥1hr: 70%
Perilous Warp is a fast-paced indie retro-shooter inspired by the classic 3D-actions. Communication with a distant space colony has been lost, and you bravely step into the teleporter with the desire for glorious adventures. But do not expect to win in a heartbeat!
Why similar: Action 41.1%, Classic 30.5% ★, Sci-fi 16%, Shooter 12.4%