- #1 Helium
97% matchMixed51% of 112 reviews2017
Dev: rocketship
Windows
Median: 1.2 hrsMean: 7.5 hrs≥1hr: 54%
Hardcore sci-fi first person shooter. You are a liaison on Vega 237 spacecraft. All crew members died and you are all by yourself in the midst of an unknown planet. Your goal is to find out what happened to the crew and establish the signal's nature.
Why similar: Action 36.7%, Adventure 36.2%, Indie 27.1%
- #2 RX squad
96% matchMostly Positive70% of 81 reviews2016
Dev: YFYX GAMESPub: My Way Games
Windows
Median: 3.1 hrsMean: 3.7 hrs≥1hr: 87%
The earth is suffering from an attack of space monsters, and the terran defense forces are called for combat and the annihilation of the monsters. The RX Squad with their advanced ships risks themselves to keep the earth in peace.
Why similar: Adventure 36.9%, Action 35.6%, Indie 27.4%
- #3 Gravity Den
96% matchVery Positive81% of 133 reviews2016
Dev: DiPiPub: Volens Nolens Games
Windows · Mac · Linux
Median: 3.5 hrsMean: 4.3 hrs≥1hr: 97%
Den is a one-eyed alien who is grounded after the terrible crash of a spaceship. On this planet, one can control the gravity around him to walk in space. Lucky Dan is also able to change the gravity on the ground. Help him to reach the lost ship.
Why similar: Adventure 36.5%, Action 35.9%, Indie 27.6%
- #4 Krystopia: A Puzzle Journey
95% matchVery Positive88% of 59 reviews2019
Dev: Antler Interactive
Windows
Follow Nova Dune, a space explorer in her quest to find out about the unfamiliar distress signal she received aboard her ship. Determined to investigate it, she finds herself on a desolated planet where all civilization has vanished.
Why similar: Sci-fi 44.8%, Adventure 35.7%, Indie 19.6%
- #5 X-17
94% matchMixed50% of 129 reviews2021
Dev: Panzer GamingPub: Volens Nolens Games
Windows
Median: 3.1 hrsMean: 3.2 hrs≥1hr: 78%
FPS/3rd Person Genre Shooter. Fight your way through an Alien Invasion not only on earth but on other planets.
Why similar: Sci-fi 29%, Action 23.8%, Indie 17.3%, Shooter 16.6%, Adventure 13.3%
- #6 Project Hive
94% matchMostly Positive75% of 67 reviews2021
Dev: Class of 2019-2020Pub: Campus ADN
Windows
Project Hive is a third-person shooter game in which you play as Alexei, a survivor stranded in the destroyed mining facility Hive on the planet Proxima. His quest will lead him through the dark secrets of Talium Industries.
Why similar: Shooter 34.9%, Sci-fi 33%, Action 24.9%, Indie 7.2%
- #7 Perilous Warp
92% 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 39.6%, Indie 29.9%, Sci-fi 18%, Shooter 12.5%
- #8 Asteria
93% matchMixed55% of 251 reviews2014
Dev: Legend Studio
Windows
Median: 2.9 hrsMean: 4.5 hrs≥1hr: 96%
Asteria is a fast paced indie platformer, wrapped up in a sandbox sci-fi world where everything is destructible, mineable, collectable, craftable and creatable.
Why similar: Adventure 36%, Indie 34.8%, Action 29.2%
- #9 Planet RIX-13
91% matchVery Positive96% of 107 reviews2017
Dev: 9 Eyes Game Studio
Windows
Median: 2.9 hrsMean: 3.2 hrs≥1hr: 85%
Planet RIX-13 is а 2D adventure, in which you play as a space explorer engaged in searching for planets potentially suitable for life.
Why similar: Adventure 46.4%, Indie 35.1%, Sci-fi 18.5%
- #10 Terrian Saga: KR-17
91% matchMostly Positive73% of 286 reviews2014
Dev: WonderflingPub: Digital Tribe
Windows · Mac · Linux
Median: 3.1 hrsMean: 3.4 hrs≥1hr: 93%
KR-17 is a 32-bit, story-driven, side-scrolling action puzzle-platformer which follows the story of a military robot on a mission to subdue a rogue agent operating out of an installation on the planet Valiant. It will be the first in a multi-genre series of games centered around the story of Terrius, KR-17's home.
Why similar: Action 38.3%, Adventure 33%, Indie 28.7%
- #11 Darwin's Test
90% matchMostly Positive73% of 73 reviews2018
Dev: Wolfalone Studio
Windows
Darwin’s Test is a first-person action and puzzle game that immerses you into a futuristic universe. You play as an amnesic patient following an experimental care protocol. Who are you ? Where are you ? So many questions to solve to discover the truth !
Why similar: Adventure 37.8%, Action 34.3%, Indie 28%
- #12 Waking Mars
89% matchVery Positive89% of 1,195 reviews2012
Dev: Tiger Style
Windows · Mac · Linux
Median: 54 minMean: 4.3 hrs≥1hr: 49%
In 2097, life is discovered on Mars. When your mission of first contact becomes trapped by a cave-in, you must master the alien ecosystem to survive. Soon you stumble upon more than anyone expected, and with time running out, you will make a decision that determines the fate of a lost planet.
Why similar: Sci-fi 46%, Adventure 26.9%, Indie 16.3%, Action 10.8%
- #13 Shoottera
89% matchMixed40% of 60 reviews2018
Dev: RussianDEVPub: azimuth team
Windows
Median: 6 minMean: 24.3 hrs≥1hr: 25%
Shooter with the elements of the quest. You need to get out of the lab, killing all the enemies.
Why similar: Adventure 37.7%, Action 35.2%, Indie 27.1%
- #14 INDUSTRIA
85% matchMostly Positive71% of 3,883 reviews2021
Dev: BleakmillPub: Headup
Windows
Median: 3.1 hrsMean: 4.0 hrs≥1hr: 83%
Embark on a gripping journey in INDUSTRIA, an atmospheric FPS set in Cold War-era East Berlin. Unravel the secrets of a mysterious parallel dimension while searching for a missing colleague. Explore a haunting reality where the truth awaits. Discover the dark past that lies beyond.
Why similar: Sci-fi 31.9%, Shooter 23.9%, Action 18.3%, Adventure 16.9%, Indie 9.1%
- #15 Planet Station
87% matchMixed65% of 78 reviews2020
Dev: Fasu Studio
Windows
Planet Station is a tense 3D action shooter in the Sci-Fi genre. Players must help former sheriff Margaret survive on a dangerous planet after her spaceship crashes. Fight monsters, gather resources, and find a way out to escape this deadly trap.
Why similar: Shooter 36.2%, Action 24.3%, Adventure 24%, Indie 15.5%
- #16 SPACE ACCIDENT
84% matchMostly Positive77% of 293 reviews2022
Dev: Whale Rock Games
Windows
Your hero is Andy Freeman, a technical engineer of the Zeus-M700 spacecraft, sent on an expedition to the satellite of Jupiter to colonize it. However, what is conceived does not always go according to plan…
Why similar: Adventure 58%, Sci-fi 29.2%, Indie 12.8%
- #17 Project Pulsation
86% matchMixed71% of 377 reviews2015
Dev: VGstudio
Windows
Median: 4.9 hrsMean: 5.8 hrs≥1hr: 99%
Project Pulsation - a sci-fi first person shooter with elements of horror and stealth. The distant space station 'Complex' located nearby Thanatos Asteroid keeps a valuable Artifact. Fight your way through turrets, unknown creatures and mysterious ghosts, survive and try to get back.
Why similar: Action 71.9%, Adventure 28.1%
- #18 Tell Some Story: Foz
81% matchVery Positive92% of 202 reviews2023
Dev: Camelot.TDM
Windows
Action-adventure + Third person shooter. The year is 2042, the near future, the gloomy world of cyberpunk will offer you the role of detective Foz. Random circumstances drag the hero into a showdown between gangs and corporations, where he has to make a choice on whose side he is.
Why similar: Shooter 35.8%, Action 33.4%, Adventure 30.9%
- #19 Mr Blaster
84% matchMixed64% of 81 reviews2017
Dev: ENTERiPub: Forever Entertainment S. A.
Windows · Mac · Linux
Median: 3.5 hrsMean: 5.2 hrs≥1hr: 94%
Mr Blaster is a higher-level space adventure with an aim to conquest the universe. It’s a way to test strategic playing skills and the precision of shooting. A galactic war over the conquest of a planet and seizing the opponent’s flag
Why similar: Action 60.7%, Indie 39.3%
- #20 Izeriya
83% matchMixed58% of 50 reviews2016
Dev: LigaGamesPub: SA Industry
Windows
Median: 4.0 hrsMean: 4.9 hrs≥1hr: 98%
Izeriya was a powerful city…but forces of evil captured it. The little man named Trix is heading to this city to destroy the evil within.
Why similar: Adventure 38.8%, Action 34.6%, Indie 26.6%
- #21 The Construct
82% matchMixed63% of 144 reviews2016
Dev: Cannibal Panda Studios
Windows
Median: 3.4 hrsMean: 4.5 hrs≥1hr: 98%
“The Construct” is a classical top-down view adventure indie game. The gameplay mixes retro-like gameplay mechanics with modern features and a spectacular atmosphere and mysterious storyline.
Why similar: Adventure 37%, Action 36.3%, Indie 26.7%
- #22 Planet R-12
80% matchVery Positive84% of 285 reviews2016
Dev: Timushev Vladimir
Windows
Median: 3.3 hrsMean: 4.1 hrs≥1hr: 93%
"Planet R-12" is a 2D tactical shooter. Your squad of persistent soldiers accidently landed on a planet of robots, populated by hostile mechanisms and war machines. Each step on a planet is full of dangers and soldiers really need your skills and abilities.
Why similar: Indie 65%, Adventure 17.9%, Action 17.1%
- #23 Robotex
81% matchMostly Negative38% of 978 reviews2014
Dev: YFYX GAMESPub: My Way Games
Windows · Mac · Linux
Median: 2.4 hrsMean: 2.9 hrs≥1hr: 66%
Life on Earth is unsustainable. Humanity must seek a new home but the only planet found is very hostile. You were sent on a expedition to slay the monsters inhabiting the surface of this planet. In this adventure you end up being the villain. Game contains two basic controls, many puzzles and lots of guns and enemies.
Why similar: Action 35.8%, Adventure 34.5%, Indie 29.7%
- #24 PLUTONIUM
79% matchMixed45% of 192 reviews2017
Dev: Ch.ZBK
Windows
PLUTONIUM: Distorted Shelter is a 2D adventure game about a major event that took place in a highly developed city state called Plutonium.
Why similar: Adventure 38.8%, Action 33.3%, Indie 27.9%
- #25 Reflecting Fate
79% matchMixed56% of 50 reviews2017
Dev: KxONEPub: Starmops
Windows
Median: 36 minMean: 12.6 hrs≥1hr: 39%
Game represents detective thriller from the first person with elements of my mysticism. Action takes place in 1996 in Denwood, player personates as its original resident. Suddenly cattle began to disappear on the island. Animals disappeared at nights absolutely without a trace, and, it seems that nobody could prevent it.
Why similar: Adventure 35.9%, Action 33.6%, Indie 30.5%
- #26 Infinitum
77% matchMixed81% of 312 reviews2017
Dev: VGstudio
Windows
Median: 4.6 hrsMean: 6.0 hrs≥1hr: 98%
Travel through space. Attend the planets. Gather resources. Find artifacts.
Why similar: Action 50.5%, Adventure 28%, Indie 21.6%
- #27 Tardy
76% matchVery Positive90% of 229 reviews2018
Dev: One Wing CicadaPub: Drageus Games S.A.
Windows · Mac · Linux
Median: 3.2 hrsMean: 5.6 hrs≥1hr: 77%
Tardy is a quest about fiddling with computers, terminals gadgets and other hi-tech scrap of all sorts. Deal with crazy machines, solve the mystery of the crew disappearance and help Ramto to come back home!
Why similar: Adventure 59.1%, Indie 40.9%
- #28 So Long Earth
78% matchMixed60% of 57 reviews2016
Dev: Ed Farage
Windows
Median: 3.1 hrsMean: 3.9 hrs≥1hr: 94%
So Long Earth is an action puzzle platformer designed to tell the story of Dominique Fayar, a french mafia member who found refuge in space after Earth's destruction.
Why similar: Adventure 36.6%, Action 35.8%, Indie 27.6%
- #29 The Station
74% matchVery Positive86% of 1,108 reviews2018
Dev: The Station Game ltd
Windows · Mac · Linux
Median: 2.4 hrsMean: 3.8 hrs≥1hr: 85%
The Station is a first-person sci-fi mystery set on a space station sent to study a sentient alien civilization. Assuming the role of a recon specialist, players must unravel a mystery which will decide the fate of two civilizations.
Why similar: Sci-fi 40%, Adventure 34.1%, Indie 25.9%
- #30 Moon Mystery
69% matchMixed66% of 685 reviews2024
Dev: CosmoscoutsPub: indie.io
Windows
Median: 2.9 hrsMean: 5.7 hrs≥1hr: 73%
The Moon's haunted - and when an astronaut loses contact with Earth, the adventure begins in full. Fill up your oxygen, load up the guns, and set out on an interstellar FPS adventure across the stars, filled with puzzles, fights, exploration, and strange secrets of the universe.
Why similar: Sci-fi 32.7%, Adventure 28.1%, Shooter 22.6%, Action 16.6%
- #31 TechnoTsunami
73% matchVery Positive93% of 55 reviews2020
Dev: Neon Castle
Windows
Solve puzzles to uncover the mysteries of a space cruise ship. Fight or work together with robots which are remotely controlled by humans on Earth. Collect the technology coming from the future which might cause an apocalypse. Save the future and the past before it’s too late.
Why similar: Adventure 38.4%, Indie 26.7%, Sci-fi 23.7%, Action 11.2%
- #32 AMOK
77% matchMixed43% of 207 reviews2016
Dev: Asset Flip Studio
Windows
Median: 2.6 hrsMean: 3.7 hrs≥1hr: 86%
Protagonist of the game is investigating the disappearance of people. The investigation leads him into an old house, and then it becomes a party to the strange and dangerous events.
Why similar: Sci-fi 26.8%, Shooter 24.5%, Adventure 18%, Action 17.5%, Indie 13.2%
- #33 Morphite
75% matchMixed68% of 109 reviews2017
Dev: Crescent Moon Games
Windows · Mac · Linux
Median: 1.4 hrsMean: 5.0 hrs≥1hr: 56%
Morphite is a casual atmospheric FPS, inspired by the classics. Research plants and animals, battle hostile entities, and unravel a mystery surrounding a rare material called Morphite.
Why similar: Adventure 41.2%, Action 34.4%, Indie 24.4%
- #34 Felix Jumpman
75% matchMixed54% of 152 reviews2017
Dev: ThinkOfGamesPub: Conglomerate 5
Windows
Median: 3.2 hrsMean: 7.2 hrs≥1hr: 95%
This action platformer takes place on the asteroids of far away worlds. You have to jump from asteroid to asteroid in 30+ mind bending levels in order to get through the level as fast as possible. Normal Game Mode - More that 30 handcrafted levels.
Why similar: Action 37.6%, Adventure 32.1%, Indie 30.4%
- #35 And All Would Cry Beware!
73% matchVery Positive85% of 106 reviews2019
Dev: Renegade Sector Games
Windows · Mac
90s-style shooter meets Metroidvania. Step through a portal to a mysterious alien world, and discover the fate of the Lost Expedition.
Why similar: Shooter 39.9%, Sci-fi 28.6%, Action 18.3%, Adventure 13.2%
- #36 Iridio
66% matchVery Positive91% of 109 reviews2025
Dev: KR Games
Windows
Seized by criminals, the island designated for your research needs your help. Join Yatziri and the Wazhari tribe to liberate their hostages, explore hidden secrets, craft essential items and weapons, and strategically use fire and water in challenging puzzles and life-or-death battles for survival.
Why similar: Shooter 39.1%, Adventure 30.6%, Action 30.3%
- #37 D3D INSIDE
72% matchMostly Positive77% of 70 reviews2019
Dev: Oblom studioPub: BekkerDev Studio
Windows
D3D INSIDE — a single 3D first-person shooter with quest chains, resource management and pumping.
Why similar: Adventure 30.2%, Action 28.2%, Indie 21.7%, Shooter 19.9%
- #38 Laraan
74% matchMixed46% of 271 reviews2017
Dev: Flynn's Arcade
Windows · Mac · Linux
Median: 3.0 hrsMean: 3.5 hrs≥1hr: 93%
Laraan is a Science-Fiction game about exploration in a desolate world. Created with a minimalist low poly style. Accompanied by a splendid movie soundtrack.
Why similar: Action 58.4%, Adventure 24.6%, Indie 17%
- #39 Zarya-1: Mystery on the Moon
72% matchVery Positive90% of 170 reviews2017
Dev: Your Story Interactive
Windows · Mac · Linux
Text based quest, mix of Sci-Fi and horror in the veins of Alien and Dead Space.
Why similar: Adventure 41.7%, Sci-fi 29.4%, Indie 28.9%
- #40 Operation: Matriarchy
73% matchMixed66% of 132 reviews2016
Dev: Madia EntertainmentPub: ESDigital Games
Windows
Median: 4.1 hrsMean: 5.2 hrs≥1hr: 97%
Operation: Matriarchy is a science fiction first-person shooter. In the 24th century mankind has formed itself into the Federation of Earth, and has colonized several other planets. However, around 2350 a mysterious virus ravages the colony planet of Velia, targeting only the females within the population.
Why similar: Action 100%
- #41 Epics of Distant Realm: Holy Return
67% matchVery Positive84% of 216 reviews2022
Dev: Emir SuleimanPub: ChronoVision
Windows
Epics Of Distant Realm: Holy Return is a Turn-Based Combat and Story Sci-Fi game that delves into the mythologies of the universe, the terminal of the universe, the Planet of Destiny.
Why similar: Sci-fi 55.1%, Adventure 44.9%
- #42 Boiling Steel
68% matchVery Positive82% of 380 reviews2020
Dev: MIROWIN
Windows
"Boiling Steel" - is a sci-fi story-based FPS VR shooter. You are one of many who set off in search of a better life in the distant bastion of scientific progress. Immerse yourself in the thick of events and witness the inexplicable global cataclysm.
Why similar: Shooter 24.1%, Sci-fi 22.8%, Action 20.8%, Adventure 20.4%, Indie 11.9%
- #43 Acre Crisis
65% matchMostly Positive77% of 61 reviews2024
Dev: David Pateti
Windows · Linux
In 1992, a brigade of the Brazilian Military Police ventured into the remote Acre region to investigate mysterious deaths caused by wild animals. Upon arrival, the soldiers found themselves cornered and must now escape from a group of hungry dinosaurs
Why similar: Shooter 38.2%, Adventure 31.1%, Action 30.8%
- #44 Within the Cosmos
64% matchMixed44% of 50 reviews2025
Dev: debdev
Windows
Within the Cosmos is a sci-fi RPG. After awakening in a secluded star system, you soon discover a fractured human society grappling with an emerging android threat. Explore planets, uncover mysteries, and navigate differing philosophies. Your choices will shape how the story unfolds.
Why similar: Sci-fi 39%, Shooter 31.5%, Action 16.1%, Adventure 13.3%
- #45 Gravitia
64% matchVery Positive92% of 168 reviews2024
Dev: VuzzlePub: Jungle Game Lab
Windows
Gravitia is an adventure game about manipulating gravity to escape a unique world full of mystery.
Why similar: Adventure 88.6%, Indie 11.4%
- #46 Empyreal
62% matchMixed70% of 149 reviews2025
Dev: Silent GamesPub: Secret Mode
Windows
Median: 4.7 hrsMean: 5.5 hrs≥1hr: 94%
Empyreal is a complex, challenging, feature-rich action RPG. In a far-flung corner of the galaxy an Expedition arrives on a hitherto unexplored planet to find a colossal Monolith built by a lost civilisation.
Why similar: Sci-fi 40.2%, Adventure 23.8%, Action 22.3%, Indie 13.7%
- #47 Potentia
67% matchMixed68% of 426 reviews2021
Dev: Wily Pumpkin
Windows
Median: 3.2 hrsMean: 6.4 hrs≥1hr: 90%
Third person shooter action adventure game with post-apocalyptic theme. Witness the adventures of Victor and his friends in this abandoned world.
Why similar: Shooter 35.7%, Adventure 26.4%, Action 25.9%, Indie 12%
- #48 Riverhill Trials
71% matchMixed62% of 55 reviews2018
Dev: Watercolor Games
Windows
Riverhill Trials is a first person, 3D PLATFORMER ADVENTURE with a dynamic environment. Fly your Space Ship, land on the strange planet and overcome its challenges: moving platforms, falling asteroids, traps and alien structures - you will be tested.
Why similar: Adventure 42.2%, Indie 32.3%, Action 25.5%
- #49 Etheria: Restart
61% matchMixed58% of 262 reviews2025
Dev: XD
Windows
Median: 2.0 hrsMean: 33.3 hrs≥1hr: 64%
Etheria is an Ethereal Hero RPG. To preserve the flame of civilization, humanity transfers their consciousness into the virtual world "Etheria". And you, as a Hyperlinker, will enter the virtual world to uncover the hidden truths of Etheria.
Why similar: Sci-fi 65.9%, Adventure 34.1%
- #50 Solaria Moon
70% matchMixed60% of 67 reviews2017
Dev: 3y3.netPub: Tizona Interactive
Windows
Solaria Moon is a space adventure in 3D with an outstanding script full of challenging puzzles to solve and mysteries to uncover.
Why similar: Adventure 62.3%, Indie 37.7%
- #51 Alien Spidy
71% matchMixed48% of 233 reviews2013
Dev: Enigma SPPub: Kasedo Games
Windows · Mac
Median: 12 minMean: 5.2 hrs≥1hr: 20%
After losing contact with his explorer friend Virgi, our fearless alien hero Spidy heads to Earth in his spacecraft to find her. While entering the Earth’s atmosphere, his spacecraft suddenly fails and starts to break up, causing Spidy to crash-land on the strange planet, with his craft scattered across forests, throughout ponds and in...
Why similar: Action 35.7%, Adventure 35.5%, Indie 28.8%
- #52 Son of Perun Kharkiv
63% matchVery Positive91% of 102 reviews2023
Dev: Brenntkopf DevelopmentPub: Brenntkopf Publishing
Windows
Son of Perun: Kharkiv is a first-person shooter in the setting of Kharkiv of the future and retrowawe.
Why similar: Shooter 33.2%, Adventure 26.3%, Action 25.3%, Sci-fi 15.2%
- #53 Osteya
70% matchMixed60% of 141 reviews2015
Dev: Volens Nolens Games
Windows · Mac · Linux
Median: 3.4 hrsMean: 11.1 hrs≥1hr: 97%
Osteya - the city which once was home to many people over the centuries. According to historians, there is a legend that Osteya stuck in time between worlds.
Why similar: Indie 42.1%, Action 29.4%, Adventure 28.5%
- #54 Venineth
66% matchVery Positive81% of 261 reviews2020
Dev: Venineth TeamPub: mort-art
Windows
Median: 3.0 hrsMean: 4.4 hrs≥1hr: 75%
Venineth is a single-player game focusing on unraveling the mysteries of ancient alien technology, somewhere in the universe via exploration, platforming, and puzzle-solving, in a dangerous, distant worlds.
Why similar: Adventure 29.4%, Action 27%, Indie 22.5%, Sci-fi 21.1%