- #1 Chants of Sennaar
97% matchOverwhelmingly Positive98% of 35,031 reviews2023
Dev: RundiscPub: Focus Entertainment
Windows
Median: 5.0 hrsMean: 6.9 hrs≥1hr: 87%
In this award-winning puzzle adventure game, play as the Traveler on a quest to reunite the Peoples of the Tower. Observe, listen, and decipher ancient languages in a fascinating universe inspired by the Myth of Babel.
Why similar: Puzzle 80.3%, Adventure 8.1%, Indie 6.9%, Singleplayer 4.7%
Why You'll Like It: Like the seed game, this critically acclaimed title centers heavily on the rewarding challenge of deciphering unknown languages through observation and context.
- #2 Sethian
96% matchMixed66% of 170 reviews2016
Dev: Duang! Games, LLC
Windows · Mac
Sethian is a sci-fi puzzle game in which you master a fictitious language. The only surviving speaker is an ancient computer. Does it hold the answers behind the disappearance of the Sethianese people?
Why similar: Puzzle 47.6%, Sci-fi 37.7%, Indie 14.7%
Why You'll Like It: You must interact with an ancient alien computer system, using logic and linguistics to learn its language and uncover its secrets.
- #3 Heaven's Vault
96% matchVery Positive84% of 2,498 reviews2019
Dev: inkle Ltd
Windows
Median: 2.8 hrsMean: 12.2 hrs≥1hr: 61%
An archaeologist uncovers a lost history in an ancient space Nebula. Award-winning narrative adventure game with hieroglyphic language puzzles, from the creators of 80 DAYS.
Why similar: Sci-fi 39.5%, Puzzle 32.9%, Space 14.1%, Adventure 6.3%, Indie 4.6%
Why You'll Like It: This linguistic adventure has you translate an ancient hieroglyphic language while exploring a sprawling sci-fi universe.
- #4 Cypher
95% matchVery Positive90% of 953 reviews2018
Dev: Matthew Brown
Windows
Median: 1.0 hrsMean: 2.9 hrs≥1hr: 49%
Cypher is a first person puzzle game about cryptography.
Why similar: Puzzle 78.2%, First-Person 12.9%, Indie 8.9%
Why You'll Like It: A classic cryptography puzzle game that directly mirrors the intellectual code-breaking and translation themes of the seed.
- #5 Machinika: Museum
94% matchVery Positive93% of 6,319 reviews2021
Dev: Littlefield StudioPub: Dear Villagers
Windows · Mac
Median: 2.3 hrsMean: 6.5 hrs≥1hr: 63%
Welcome to the Museum! Machinika Museum is a mystery game where you discover beautiful and mysterious machines of extra-terrestrial origins in an atmospheric galaxy-spanning 3D puzzle game. Will you be able to understand their stories and discover what happened to their previous owner?
Why similar: Science 34.3%, Aliens 19.4%, Investigation 13.7%, Puzzle 11.6%, Sci-fi 10.9%
Why You'll Like It: Offers intricate sci-fi mechanical puzzle-solving reminiscent of investigating alien technology.
- #6 Signal Simulator
94% matchMostly Positive79% of 1,029 reviews2018
Dev: Blagovest Penev
Windows · Linux
Median: 3.0 hrsMean: 7.4 hrs≥1hr: 72%
Game inspired by SETI. Take the role of a scientist to find an extraterrestrial signal .Control massive Radio Antennas by using interactive control in your Observatory. Detect , download and decode unknown or story telling signals. Manage and Maintain an electrical system to improve your systems and make it more efficient.
Why similar: Science 48.7%, Aliens 33.4%, Space 11.9%, Indie 3.5%, First-Person 2.2%
Why You'll Like It: Captures the atmospheric tension of monitoring deep space frequencies and searching for extraterrestrial anomalies.
- #7 The Roottrees are Dead
92% matchOverwhelmingly Positive96% of 10,219 reviews2025
Dev: Evil Trout Inc.
Windows · Mac · Linux
Median: 7.9 hrsMean: 9.8 hrs≥1hr: 89%
A genealogical mystery straight out of 1998. Scour the early Internet for clues, uncover hidden connections, and piece together the family tree behind the secretive Roottree Corporation.
Why similar: Investigation 44.6%, Puzzle 37.6%, Retro 11.5%, Adventure 2.6%, Singleplayer 2%
Why You'll Like It: An incredible investigative puzzle game focused on deduction, piecing together clues, and uncovering hidden truths.
- #8 The Turing Test
93% matchVery Positive88% of 8,043 reviews2016
Dev: BULKHEAD
Windows
Median: 3.5 hrsMean: 5.1 hrs≥1hr: 85%
The Turing Test is a challenging first-person puzzle game set on Jupiter’s moon, Europa. You are Ava Turing, an engineer for the International Space Agency (ISA) sent to discover the cause behind the disappearance of the ground crew stationed there.
Why similar: Puzzle 34.3%, Sci-fi 27.8%, Space 20.9%, First-Person 12.1%, Adventure 2.7%
Why You'll Like It: It delivers a cerebral first-person sci-fi puzzle experience that tests your logical deduction skills.
- #9 Epigraph
91% matchVery Positive87% of 350 reviews2024
Dev: Matthew Brown
Windows
Median: 1.5 hrsMean: 2.8 hrs≥1hr: 55%
Epigraph is a short, challenging, language decipherment puzzle game.
Why similar: Investigation 37.1%, Puzzle 30.3%, Text-Based 22.8%, 3D 3.8%, Adventure 2.6%
Why You'll Like It: A pure logic and investigation puzzle game that shares the cerebral, analytical feel of decoding deep space messages.
- #10 Faraday Protocol
91% matchVery Positive86% of 118 reviews2021
Dev: Red Koi BoxPub: Deck13
Windows · Linux
Faraday Protocol is a first person puzzle game that will test your wits and intelligence. Use the Bia-Tool, an ancient pistol-like relic of an alien civilization, to solve puzzles by bending energy and manipulating enigmatic machinery.
Why similar: Aliens 33.7%, Puzzle 19.5%, Sci-fi 17.2%, Linear 9.4%, First-Person 9.2%
Why You'll Like It: A first-person 3d puzzle game set in a mysterious sci-fi environment filled with logic challenges.
- #11 Machinika: Atlas
90% matchMostly Positive77% of 615 reviews2024
Dev: Littlefield StudioPub: Dear Villagers
Windows
Machinika: Atlas is an indie puzzle game and is the direct sequel to Machinika: Museum, you play as a museum researcher who just land on Atlas. Will you unravel the mysteries of the alien vessel? Solve cryptic puzzles to find out what happened!
Why similar: Science 22.3%, Aliens 19%, Puzzle 12.8%, Investigation 12.7%, Sci-fi 12.1%
Why You'll Like It: Continues the sci-fi puzzle adventure formula with intricate machinery and investigative elements.
- #12 Lingo
89% matchVery Positive94% of 829 reviews2021
Dev: Brenton Wildes
Windows
Median: 5.8 hrsMean: 29.7 hrs≥1hr: 76%
Lingo is a first person word puzzle game with a large, abstract world to explore. With its epiphany-driven gameplay and impossible geometry, Lingo provides a unique and nonlinear experience.
Why similar: Puzzle 55%, First-Person 22.7%, Indie 8.9%, 3D 6.1%, Adventure 4.1%
Why You'll Like It: A first-person puzzle game that cleverly uses language, vocabulary, and semantic logic as its core mechanics.
- #13 Exographer
89% matchVery Positive95% of 146 reviews2024
Dev: SciFunGamesPub: Abylight Studios
Windows · Mac
Exographer is an exploration game based on science. Become an explorer, stranded in an alien planet, and discover the secrets of an extinct civilization. Gain new powers to avoid dangers and obstacles in your journey, and use your camera to reveal particles and hidden clues.
Why similar: Science 58.8%, Puzzle 14.6%, Investigation 12.7%, Sci-fi 10.2%, Adventure 2.2%
Why You'll Like It: A science-themed puzzle adventure where you explore an alien world and analyze scientific anomalies.
- #14 Voyager-19
87% matchVery Positive88% of 1,023 reviews2024
Dev: MizizizizPub: Deep Root Interactive
Windows · Mac · Linux
Median: 48 minMean: 54 min≥1hr: 30%
A short horror game where you control a decaying spacecraft exploring distant star systems.
Why similar: Sci-fi 17.8%, Retro 16.4%, Space 15.3%, Aliens 15.2%, Text-Based 14.8%
Why You'll Like It: A retro-styled space sci-fi journey that captures a similar solitary atmospheric aesthetic.
- #15 The Station
88% matchVery Positive86% of 1,124 reviews2018
Dev: The Station Game ltd
Windows · Mac · Linux
Median: 2.6 hrsMean: 3.8 hrs≥1hr: 86%
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 33.5%, Space 25%, Puzzle 17%, First-Person 10.4%, Indie 7.6%
Why You'll Like It: Features a sci-fi atmospheric investigation aboard an alien-adjacent space station where observation is key.
- #16 Newton's Fourth Law
86% matchVery Positive93% of 229 reviews2025
Dev: Newtonian Studios
Windows
Fight against brain-rot in this story-driven educational physics puzzle game. You will need to learn and apply high school physics concepts to solve increasingly challenging problems and uncover a galaxy spanning plot. When you have finished, you will be able to take a college level physics course.
Why similar: Science 51.3%, Aliens 16.8%, Puzzle 12.9%, Sci-fi 10.3%, First-Person 4.3%
Why You'll Like It: Combines physics and educational puzzle mechanics that appeal to the scientific rigor of the seed.
- #17 while True: learn()
85% matchVery Positive91% of 8,246 reviews2019
Dev: Luden.io
Windows · Mac · Linux
Median: 3.0 hrsMean: 6.0 hrs≥1hr: 80%
You're a programmer. Your cat is a better one. Solve visual puzzles built from real machine learning ideas, from decision trees to neural networks, to create a cat-to-human translator. Take freelance jobs, upgrade your rig, gamble on startups, dress up the cat. No coding required, curiosity is.
Why similar: Science 64.1%, Puzzle 23%, Investigation 5.4%, Dynamic Narration 4.8% ★, Indie 2.4%
Why You'll Like It: Taps into the logic, math, and programming aspects required to decode complex systems.
- #18 Cosmic Fear
84% matchVery Positive86% of 132 reviews2026
Dev: Alessandro Guzzo
Windows
You’ve discovered evidence of a cosmic presence influencing humanity since its origins. Now something born in the depths of the cosmos is calling again. Investigate, uncover forbidden knowledge and survive a disturbing first person Lovecraftian horror adventure.
Why similar: Aliens 34.7%, Investigation 22.3%, Sci-fi 14.1%, Puzzle 10.4%, Linear 6.3%
Why You'll Like It: Immerses you in a tense, atmospheric sci-fi space horror experience heavy on investigation.
- #19 Epitasis
86% matchMostly Positive73% of 160 reviews2019
Dev: Epitasis Games
Windows · Mac
After discovering an ancient portal, you suddenly find yourself among the remnants of an ancient alien civilization. Technological relics, sprawling ruins, and cryptic puzzles are all that remain. If you are to learn their secrets, you must unearth the fate of the race that called this world home.
Why similar: Science 49.5%, Puzzle 15%, Sci-fi 13.9%, Space 12.6%, First-Person 5.3%
Why You'll Like It: An atmospheric exploration puzzle game set across stunning alien landscapes rich in sci-fi mystery.
- #20 Total Reload
83% matchPositive96% of 52 reviews2025
Dev: TORSHOCK
Windows · Mac · Linux
Help Artificial Intelligence named HAWKING activate an incredible mechanism that can reload the Universe!
Why similar: Puzzle 32.9%, Sci-fi 28.3%, First-Person 14.6%, 3D 10.4%, Linear 7.6%
Why You'll Like It: A first-person 3d puzzle exploration game with sci-fi overtones.
- #21 IFO
84% matchVery Positive85% of 113 reviews2022
Dev: Lucas Le Slo
Windows · Mac
A spaceship simulator for aliens, an ever-changing rule discovery puzzle for humans.
Why similar: Aliens 46.7%, Puzzle 25.2%, Sci-fi 15.1%, Space 9.8%, Indie 2.3%
Why You'll Like It: Involves alien encounter puzzles and point-and-click exploration in a sci-fi setting.
- #22 EXOTERRA: A Space Journey
81% matchVery Positive88% of 59 reviews2026
Dev: ManuHerreraDev
Windows
EXOTERRA: A Space Journey is a first-person science fiction puzzle game set aboard a stranded ship in the vast, dark expanse of outer space. Explore the HOPE-03 and uncover the mysteries it holds as you solve fully interactive escape-room-style chambers powered by a physics-based system.
Why similar: Puzzle 34.7%, Sci-fi 34.7%, First-Person 13.1%, 3D 6.1%, Adventure 5%
Why You'll Like It: A space-faring puzzle adventure featuring physics and sci-fi exploration.
- #23 _message:
81% matchVery Positive86% of 104 reviews2023
Dev: TEAM 217Pub: PsychoFlux Entertainment
Windows
_전언:(_message:)은 심리적 공포 요소가 포함된 텍스트 어드벤처 게임입니다. 달에 잔류하여 지구에 있는 본부와 통신을 하는 사이, 당신은 점점 이상한 낌새를 눈치채기 시작합니다...
Why similar: Text-Based 26.4%, Puzzle 20%, Space 18.2%, Sci-fi 13.8%, First-Person 8.9%
Why You'll Like It: An interactive fiction puzzle game with strong first-person space and text elements.
- #24 Dofamine
82% matchMostly Positive76% of 274 reviews2021
Dev: Whale Rock Games
Windows
You must explore the labyrinth of riddles and investigate the apocalyptic event at the research facility following the experiments with the Higgs boson, or “the God particle”.
Why similar: Science 39.9%, Sci-fi 17.2%, Investigation 17.1%, Puzzle 12.2%, First-Person 4.6%
Why You'll Like It: A sci-fi physics puzzle adventure sharing the technical mood of deep space experimentation.
- #25 Odyssey - The Story of Science
82% matchMostly Positive75% of 306 reviews2017
Dev: The Young Socratics
Windows · Mac
Median: 1.5 hrsMean: 9.2 hrs≥1hr: 62%
Odyssey is an enchanting and innovative science adventure game. Help Kai and her family escape their captors on the Wretched Islands - and learn the history of astronomy, mechanics, and scientific reasoning as you read Kai's journal and solve puzzles along the way!
Why similar: Science 75.3%, Puzzle 17%, Adventure 4%, Indie 3.6%
Why You'll Like It: Integrates scientific principles and educational puzzle-solving directly into its adventure gameplay.
- #26 Pyramids and Aliens: Escape Room
80% matchVery Positive82% of 199 reviews2024
Dev: mc2games
Windows
Embark on an archaeological adventure inside an ancient pyramid to find your missing mentor. As an intrepid explorer, solve puzzles, investigate clues, and unravel the pyramid's secrets. Spoiler: it was not built by humans!
Why similar: Aliens 43.7%, Puzzle 18.6%, Sci-fi 17.5%, Investigation 16.5%, Adventure 2.8%
Why You'll Like It: Combines alien themes and investigative escape room puzzle mechanics.
- #27 no signal
79% matchVery Positive99% of 79 reviews2025
Dev: exodrifter
Windows · Linux
An emotional point-and-click hard sci-fi adventure game about exploring an abandoned space station. Follow messages left by the long-gone staff to learn the outcome of the research team and the secrets they left behind.
Why similar: Sci-fi 26%, Puzzle 24.5%, Space 23.3%, Linear 12.1%, 3D 7.2%
Why You'll Like It: A space exploration mystery emphasizing sci-fi investigation and environmental puzzles.
- #28 Escape 51
79% matchVery Positive96% of 55 reviews2024
Dev: 51 Goobcells Production
Windows
In Escape 51 you play as a small alien that has been mistreated by humans as he works to escape the research facility that has kept him and other aliens like him captive for so long.
Why similar: Aliens 42%, Puzzle 16.6%, Sci-fi 14.7%, Space 14%, Linear 7.2%
Why You'll Like It: An alien-themed space adventure packed with environmental puzzles.
- #29 YogLabs: Testing Initiative
77% matchVery Positive98% of 89 reviews2025
Dev: Four White Cats
Windows
A unique puzzle-adventure set in the secret YogLabs research facility. As a newly created clone, you’ll face a series of challenges while disaster threatens to consume the laboratory.
Why similar: Science 43.5%, Puzzle 18.6%, Sci-fi 11.2%, Space 7.8%, First-Person 7%
- #30 Mystery of the Malign
77% matchVery Positive94% of 82 reviews2025
Dev: Gameplay Supremacy
Windows
Investigate. Interrogate. Descend into a world of intrigue to untangle the Mystery of the Malign.
Why similar: Investigation 38%, Puzzle 28%, Retro 16.5%, First-Person 6.6%, 3D 4.5%
- #31 Cosmic Express
78% matchVery Positive90% of 629 reviews2017
Dev: Cosmic EngineersPub: Draknek & Friends
Windows · Mac · Linux
Median: 2.1 hrsMean: 7.1 hrs≥1hr: 62%
Plan the train route for the universe's most awkward space colony!
Why similar: Aliens 40.4%, Puzzle 27.9%, Space 23.9%, 3D 7.8%
Why You'll Like It: A logic puzzle game about mapping routes through space with strict grid-based spatial reasoning.
- #32 The Twin Paradox
76% matchVery Positive90% of 113 reviews2024
Dev: Beyond Standard Games
Windows · Linux
The Twin paradox is an RPG where you must prepare yourself for the first time travel. Make decisions, explore, and learn real science with the scientists of the "Beyond" laboratory. It's up to you to make the journey a success.
Why similar: Science 72.2%, Sci-fi 13.7%, Space 13%, Singleplayer 0.6%, Indie 0.4%
- #33 Intelligence
75% matchVery Positive97% of 76 reviews2026
Dev: Zero Trick Pony games
Windows · Mac
A retro-sci-fi themed mystery investigation puzzle game. Search for clues across the solar system, gather intelligence using your cutting-edge investigation tools, and figure out what happened. When you find all 15 ships, you win!
Why similar: Puzzle 41.4%, Retro 29.6%, Space 22.9%, Indie 4%, Singleplayer 2.1%
- #34 Rivage
74% matchMostly Positive74% of 351 reviews2026
Dev: Exnilo StudioPub: Raw Fury
Windows
Rivage is an immersive sci-fi puzzle adventure set aboard the A.R.E.S. space station trapped in a space phenomenon. Wake up as Miranda, forced to explore, solve intricate puzzles to unravel the fate of your missing crew.
Why similar: Science 39%, Investigation 17.7%, Sci-fi 13.1%, Puzzle 12.4%, Space 8.2%
- #35 The Last Cube
75% matchVery Positive97% of 151 reviews2022
Dev: Improx Games
Windows · Mac · Linux
Cube puzzler and an epic adventure. Stamp stickers to the sides of your cube to imbue each surface with unique powers, which are vital to solving puzzles and finding secrets.
Why similar: Science 52.9%, Puzzle 13.9%, Sci-fi 13%, Aliens 12.2%, 3D 4.4%
- #36 The House of Tesla: Definitive Edition
74% matchMostly Positive73% of 876 reviews2025
Dev: Blue Brain Games
Windows · Mac · Linux
Solve intricate puzzles to activate Nikola Tesla's creations, restore Wardenclyffe Tower, and unlock hidden devices in his New York lab. Explore the Chicago World's Fair in this mind-bending puzzle adventure.
Why similar: Science 51.1%, Investigation 19.8%, Puzzle 12.9%, Linear 6.5%, 3D 4.1%
- #37 Professor Watts Word Search: Space Voyage
78% matchMostly Negative32% of 53 reviews2018
Dev: Ripknot Systems
Windows
Hello Professor Watts here and I need your help! I've been hard at work on my space voyage, collecting samples and documenting important research materials. Now that I have returned to my laboratory I find all of my research files has been jumbled about
Why similar: Science 52.6%, Text-Based 18.7%, Puzzle 11.3%, Space 10.4%, Indie 6.1%
Why You'll Like It: A light space-themed word puzzle that touches on the linguistic side of space exploration.
- #38 The Invincible
72% matchVery Positive88% of 13,757 reviews2023
Dev: Starward IndustriesPub: 11 bit studios
Windows
Median: 4.2 hrsMean: 8.4 hrs≥1hr: 85%
Rethink human’s dominion in The Invincible: a story-driven adventure set in a hard sci-fi world by Stanisław Lem. Discover planet Regis III as scientist Yasna, use atompunk tools looking for a missing crew and face unforeseen threats. Make choices in a philosophical story that’s driven by science.
Why similar: Science 45.1%, Aliens 23.9%, Sci-fi 13.8%, Space 9.8%, First-Person 4.3%
- #39 Quantum Void
72% matchVery Positive97% of 91 reviews2026
Dev: TacNours
Windows
Lost in an unexplored star system after a dimensional anomaly dispersed your fleet, you start to pick up signals scattered throughout the system. Explore the wrecks of the corporate fleet, discover the secrets of the anomaly, and try to get the good ending.
Why similar: Sci-fi 24%, Retro 22.6%, Puzzle 18.8%, Space 16.8%, First-Person 7.5%
- #40 Neospace: Prologue
73% matchVery Positive90% of 59 reviews2024
Dev: DreamStudios
Windows
You wake up in a spaceship, you realize that strange things are going on there, you try to get back to civilization. However, this is harder than you think, the encounters will drive you crazy and you will doubt yourself.
Why similar: Sci-fi 28%, Space 25.4%, Puzzle 19%, Retro 8.9%, First-Person 6.7%
- #41 The Artifact
76% matchMixed63% of 215 reviews2017
Dev: Colin WrenPub: Enigma Games LTD
Windows
Median: 3.0 hrsMean: 3.5 hrs≥1hr: 83%
Woken from a hypersleep, you find yourself alone on a drifting star cruiser, light years from home. The crew has disappeared, leaving behind nothing but a few scattered records and a strange artifact that seems to hold the key to an alien civilisation.
Why similar: Puzzle 62.2%, Indie 28.2%, Adventure 9.7%
- #42 CD-ROM
71% matchVery Positive94% of 128 reviews2026
Dev: monoclelord
Windows
10 CDs, 10 passwords. Find hidden messages, text, numbers to unlock next CD to continue your steganography puzzle journey.
Why similar: Puzzle 33.2%, Retro 32.8%, Text-Based 17.2%, Sci-fi 10.3%, Indie 3.3%
- #43 Murder On Space Station 52
71% matchVery Positive98% of 50 reviews2024
Dev: Made From StringsPub: Dionous Games
Windows · Mac · Linux
Trapped on a space station with the Keychain Killer you must unravel this mystery, or it will be your last. Collect evidence, interrogate suspects and solve puzzles to stand a chance.
Why similar: Sci-fi 30.9%, Puzzle 28.5%, Space 24%, Linear 12.5%, Adventure 4.2%
- #44 Venineth
73% matchVery Positive80% of 269 reviews2020
Dev: Venineth TeamPub: mort-art
Windows
Median: 3.4 hrsMean: 4.4 hrs≥1hr: 76%
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: Aliens 40%, Sci-fi 18%, Puzzle 14.6%, Space 13.4%, Indie 6.7%
- #45 4D Intuition
69% matchVery Positive100% of 74 reviews2026
Dev: Yu Gu (yugu233)Pub: Yu Gu
Windows · Mac
Build your intuition for four-dimensional space, starting with walking and jumping. Master a wide variety of interactions and solve challenging 4D Sokoban-style puzzles.
Why similar: Science 53.7%, Puzzle 24.9%, Space 10.1%, First-Person 7.5%, Indie 3.1%
- #46 The Art of Reflection
69% matchVery Positive97% of 159 reviews2025
Dev: Hydrozoa
Windows
Traverse mirrors as if they were natural extensions of space to solve puzzles and uncover secrets. Reshape your perspective to perform gravity-shifting acrobatics as you jungle-gym through a sprawling environment. You'll never look in a mirror the same way again.
Why similar: Puzzle 46.3%, First-Person 23%, Space 10.8%, 3D 9.3%, Indie 3.8%
- #47 Deep Space
73% matchMixed58% of 151 reviews2020
Dev: Axe GamesPub: Enoops
Windows
You are entrusted with the role of one of the elite captains, put on a high-tech mech suit suitable for travel into space and go on an exciting journey.
Why similar: Space 47.1%, First-Person 22.1%, 3D 15.3%, Indie 6.4%, Adventure 6.3%
- #48 Terminal Lucidity
68% matchVery Positive96% of 103 reviews2026
Dev: Happy Accident Studios
Windows
In a concrete slab beneath the earth, a lone technician is sent for routine maintenance on a network of supercomputers. Each terminal operates on its own hidden rules, and the only way to escape is to learn how to speak their language. Crack the code, unlock the truth.
Why similar: Investigation 41.1%, Puzzle 27.6%, Sci-fi 12.6%, First-Person 7.4%, 3D 7.2%
- #49 Palindrome Syndrome: Escape Room
70% matchVery Positive82% of 554 reviews2020
Dev: mc2games
Windows
Median: 2.0 hrsMean: 2.8 hrs≥1hr: 87%
You wake up in a spaceship with no memories. In this escape room with a sci-fi setting you will have to investigate your past solving different puzzles. Will you be able to discover what happened to you and how did you get there?
Why similar: Investigation 38.2%, Sci-fi 25.3%, Puzzle 24%, Adventure 3.8%, First-Person 3.6%
- #50 Take Notes
68% matchVery Positive97% of 100 reviews2025
Dev: Stoneware Game Studio
Windows
Take Notes is a puzzle game set in the near future within a bunker filled with 40 unique puzzles. Prepare yourself for a mind-bending adventure where every puzzle solved brings you one step closer to stopping the unthinkable
Why similar: Puzzle 38.2%, Sci-fi 26.4%, First-Person 16.5%, 3D 9.2%, Adventure 4.5%
- #51 Event[0]
70% matchVery Positive80% of 2,299 reviews2016
Dev: Ocelot Society
Windows · Mac
Median: 3.4 hrsMean: 4.1 hrs≥1hr: 92%
Event[0] is a sci-fi narrative exploration game where you build a relationship with a lonely spaceship computer to get home to Earth.
Why similar: Sci-fi 27.6%, Puzzle 24.2%, Space 20.3%, First-Person 11.5%, 3D 6.7%
- #52 Exo One
68% matchVery Positive90% of 5,287 reviews2021
Dev: ExbleativePub: Future Friends Games
Windows
Median: 1.8 hrsMean: 2.8 hrs≥1hr: 68%
A strange signal... an alien craft... an interplanetary, gravity-defying journey through space and time.
Why similar: Space 38.5%, Sci-fi 32.8%, Linear 12.8%, 3D 9.8%, Adventure 6.1%
- #53 Earth Analog
71% matchMixed66% of 113 reviews2021
Dev: Funcraft Games
Windows
In this relaxing space flight adventure, you pilot the science vessel Eurisko XI on a quest through deep space. Explore fascinating, fractal-based exoplanets and uncover their mysteries. Analyze artifacts and upgrade your ship to unlock new pathways. Your mission: find humanity’s new home.
Why similar: Space 27.6%, Sci-fi 25.8%, Puzzle 23.3%, First-Person 9%, 3D 7.5%
- #54 Krystopia: A Puzzle Journey
70% 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 34.6%, Puzzle 34.5%, Space 19.1%, Adventure 6.5%, Indie 5.3%
- #55 Mind Diver
65% matchVery Positive95% of 383 reviews2025
Dev: Indoor SunglassesPub: PLAYISM
Windows
Investigate a broken mind to unravel a twisted case. Deduce the truth. Restore lost memories. Listen to private conversations. Draw your own conclusions. Mind Diver is a murder mystery, where the victim is love.
Why similar: Investigation 37.3%, Puzzle 22.3%, Sci-fi 22.2%, First-Person 9.9%, Indie 3.4%
- #56 Moon Mystery
67% matchMixed65% of 721 reviews2024
Dev: CosmoscoutsPub: indie.io
Windows
Median: 2.7 hrsMean: 5.3 hrs≥1hr: 70%
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 26.6%, Puzzle 22.1%, Space 21.8%, Linear 11.3%, First-Person 10.2%
- #57 THE MULLER-POWELL PRINCIPLE: Director's Cut
67% matchMostly Positive73% of 369 reviews2023
Dev: Three Dots Games
Windows
Dr. Herman, your sci-fi journey begins. Armed only with your mind and the Manipulator that operates with different types of energy, you'll have to pass through portals, visit parallel worlds, and solve physics-based puzzles.
Why similar: Science 62.6%, Sci-fi 14.2%, Puzzle 13.7%, First-Person 6.2%, Adventure 2.1%
- #58 Chroma Zero
64% matchVery Positive96% of 364 reviews2024
Dev: ekorzPub: ZeroXP
Windows
Explore a unique and connected world. Understand its fragile balance, uncover its deepest questions, and find more than just the answers.
Why similar: Puzzle 39.5%, Sci-fi 24.5%, First-Person 17.2%, 3D 7.2%, Adventure 5.6%
- #59 ALONE IN SPACE
69% matchMixed53% of 158 reviews2016
Dev: Butterflyware
Windows · Mac · Linux
Experience an immersive sci-fi adventure. Walk in the footsteps of the ill-fated crew members of the Miranda station. Explore a world cloaked in mystery and danger, solve clever puzzles to help discover the questions that...
Why similar: Space 27.9%, Sci-fi 26.4%, Puzzle 23.2%, First-Person 12.1%, Adventure 6.7%
- #60 The Fermi Paradox
66% matchMostly Positive77% of 1,004 reviews2021
Dev: Anomaly Games
Windows
Median: 4.0 hrsMean: 5.5 hrs≥1hr: 75%
The Fermi Paradox is a choice-driven sci-fi narrative strategy game in which your decisions in one corner of the galaxy can upend entire civilizations in another. Guide species through millennia and help them explore the vastness of space, make contact and, perhaps, create harmony.
Why similar: Aliens 54.9%, Sci-fi 24.2%, Space 16.2%, Indie 3.5%, Singleplayer 1.2%