Discounted Science Games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated science games. For those who prefer not to search, lists of the most played, top deals and best free science games are available at the bottom of the page.
Filters & Lists
The Alters
Explore an emotional sci-fi game with a unique blend of survival, adventure, and base-building elements. Help Jan Dolski, the sole survivor of an ill-fated space expedition, create alternative versions of himself to escape a hostile planet and tackle personal turmoils with this unconventional crew.
Zombie Cure Lab
In a world overrun by the undead, build a lab to fight back with science. Manage survivors, gather vital resources, and turn zombies into allies. Defend your base and research the cure to reclaim humanity.
Bionic Bay
A scientist uses a unique teleportation instrument to escape an ancient biomechanical world filled with imaginative technology, deadly traps, and hidden secrets.
Learning Factory
Build intricate supply chains to meet your feline customers' needs. Discover underground and air transport layers, a vast research tree, procedural worlds, machine learning, and endless automation in this relaxing, enemyless game.
Machinika: Atlas
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!
Abiotic Factor
Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.
Botany Manor
Welcome to Botany Manor, a stately home in 19th century England. You play as inhabitant Arabella Greene, a retired botanist. Explore your house and gardens, filled with research, to figure out the ideal habitat of forgotten flora. Grow each plant to discover the mysterious qualities they hold…
The Outlast Trials
Red Barrels invites you to experience mind-numbing terror, this time with friends. Whether you go through the trials alone or in teams, if you survive long enough and complete the therapy, Murkoff will happily let you leave… but will you be the same?
The Invincible
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.
The Talos Principle 2
The Talos Principle 2 is a thought-provoking first-person puzzle experience that greatly expands on the first game's philosophical themes and stunning environments with increasingly mind-bending challenges.
Fish Game
Fish Game is a detailed and highly “sofishticated” freshwater aquarium simulator, lovingly crafted *by* enthusiasts *for* enthusiasts! Featuring fish with personalities and dynamic relationships, water quality modeling, and so much more! Made with support from our friends at Smarter Every Day!
InfraSpace
Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain.
Mars First Logistics
Build physically simulated rovers to transport awkwardly shaped cargo across the rugged terrain of Mars. Earn funds, unlock new parts, and use your ingenuity to help the Martians establish a new home. Playable solo or in online co-op!
Mega Man Battle Network Legacy Collection Vol. 2
The renowned Mega Man Battle Network series, which has expanded into anime and comics, is back. Volume 2 includes six action packed games from both versions of Mega Man Battle Network 4 to both versions of Mega Man Battle Network 6, plus additional features like a gallery and online play!
Mega Man Battle Network Legacy Collection Vol. 1
The renowned Mega Man Battle Network series is back! Vol. 1 contains Mega Man Battle Network 1-3, including both versions of Mega Man Battle Network 3 for a total of four titles, plus additional features like a gallery of illustrations and music! In addition, online play is supported!
Terraformers
Terraform Mars in this turn-based colony builder and resource management game with roguelike elements. Explore the planet, develop spectacular cities, spread life and turn the Red Planet into a green one!
SpaceBourne 2
Embark on a journey to greatness. Get ready for adrenaline-fueled battles and a chance to claim your place in the galaxy. Grab the controls of your ship, gear up for the fight, and unleash your ambition to conquer and build a new empire in the vastness of space.
Juno: New Origins
Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode.
CHAOS;HEAD NOAH
CHAOS;HEAD NOAH is now available on Steam!
TRYP FPV: Drone Racer Simulator
Fly freely and perfect your skills as an FPV pilot without the risk of breakage, with hyper-realistic visuals and flight sensations. Whether you're a beginner or an expert, TRYP FPV is the next-generation simulator that immerses you in the pure adrenaline of FPV drone flying.
Tin Can
You've barely managed to escape your exploding spaceship. Now in an old escape pod, you hurtle through space at the mercy of the cosmos. With no knowledge of the pod’s complex systems, your life depends on a technical manual and your own wits. How long can you survive?
Prehistoric Kingdom
Take control of limitless power in Prehistoric Kingdom to build, manage and grow the ultimate zoo for extinct animals.
Next Space Rebels
SPACE IS FOR EVERYONE. In Next Space Rebels, you will develop from a naive rocket hobbyist into an experienced space activist by designing, building, and launching rockets of increasing complexity.
Most played science games on Steam
Take a look at the top science games that are currently attracting the largest player bases on the Steam platform, as of June 15th 2025.
1. Cell to Singularity - Evolution Never Ends
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap. Cell to Singularity - Evolution Never Ends is a clicker, free to play and simulation game developed and published by Computer Lunch. Released on November 03rd 2021 has received 23,690 reviews of which 21,284 were positive and 2,406 were negative resulting in a rating of 8.8 out of 10. The game has hit the top spot as the #1 most played science game, thanks to its 2,539 peak concurrent players over the last day.
8.8
21,284
2,406
2,539
players
2. Kerbal Space Program
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics. Kerbal Space Program is a space, simulation and sandbox game developed by Squad and published by Private Division. Released on April 27th 2015 has received 127,162 reviews of which 121,084 were positive and 6,078 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 2,221 players online at once in the last 24 hours, this game is currently ranked #2 among science games based on player count.
9.4
121,084
6,078
2,221
players
3. Universe Sandbox
Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe. Universe Sandbox is a sandbox, space and simulation game developed and published by Giant Army. Released on August 24th 2015 has received 27,448 reviews of which 26,456 were positive and 992 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 390 players online at once in the last 24 hours, this game is currently ranked #3 among science games based on player count.
9.4
26,456
992
390
players
4. Stationeers
Stationeers puts you in control of the construction and management of a space station to run by yourself or online with your friends. Complex atmospheric, electrical, manufacturing, agriculture, and gravitational systems require your thought and management at all times! Stationeers is a early access, space and base-building game developed and published by RocketWerkz. Released on December 12th 2017 has received 7,066 reviews of which 6,040 were positive and 1,026 were negative resulting in a rating of 8.3 out of 10. With 289 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played science games.
8.3
6,040
1,026
289
players
5. Juno: New Origins
Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode. Juno: New Origins is a building, science and space sim game developed and published by Jundroo and LLC. Released on January 26th 2023 has received 3,118 reviews of which 2,807 were positive and 311 were negative resulting in a rating of 8.7 out of 10. The game currently holds the #5 spot among the most played science games.
8.7
2,807
311
47
players
6. The Sapling
The Sapling is a short simulation game where you design your own plants and animals, and put them in a world together. Or you turn on random mutations, and see what evolution does to your ecosystem! The Sapling is a life sim, sandbox and science game developed and published by Wessel Stoop. Released on December 12th 2019 has received 1,494 reviews of which 1,342 were positive and 152 were negative resulting in a rating of 8.5 out of 10. The game currently holds the #6 spot among the most played science games.
8.5
1,342
152
38
players
7. while True: learn()
You’re a machine learning specialist who makes neural networks but your cat seems to be better at it. Now you must solve puzzles to build a cat-to-human translation system (who knows what else this cat is capable of!). Earn a fortune, buy kickass cat outfits, learn how machine learning really works! while True: learn() is a programming, simulation and education game developed and published by Luden.io. Released on January 17th 2019 has received 7,618 reviews of which 6,967 were positive and 651 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #7 spot among the most played science games.
8.9
6,967
651
14
players
8. Thrive
An evolution simulation game. Take control of your species in the environment and edit your species as a whole. Compete with other evolving species for resources on an alien planet. Thrive is a simulation, science and sandbox game developed and published by Revolutionary Games Studio. Released on November 26th 2021 has received 1,327 reviews of which 1,228 were positive and 99 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #8 spot among the most played science games.
8.8
1,228
99
14
players
9. Species: Artificial Life, Real Evolution
Play with evolution! Species: ALRE is a scientifically-grounded, emergent simulation of natural selection. Creatures evolve and speciate in response to in-game mutation and selection forces, allowing you to experience and tinker with evolution in real-time. Species: Artificial Life, Real Evolution is a simulation, sandbox and early access game developed and published by Quasar. Released on September 28th 2018 has received 958 reviews of which 716 were positive and 242 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #9 spot among the most played science games.
7.2
716
242
4
players
10. Tyto Ecology
Build your biome! With an empty biodome as your canvas, add plants and animals from three different ecosystems. Observe interactions like hunting, blooming, and even decomposing! Will your biodome last for decades, or will it experience a total ecosystem collapse? You’re in control! Tyto Ecology is a simulation, indie and strategy game developed and published by Immersed Games. Released on April 14th 2016 has received 429 reviews of which 323 were positive and 106 were negative resulting in a rating of 7.1 out of 10. The game currently holds the #10 spot among the most played science games.
7.1
323
106
1
players
Best deals on science games on Steam
Discover fantastic savings with the best discounts on a variety of science games available on Steam right now, updated on June 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted science games.
1. Size Matters
You play as a scientist who is shrinking every second in a race against time! Find all the ingredients and formulas scattered around the laboratory, which are necessary for producing the life-saving antidote. But beware, your time is very precious. Size Matters is a simulation, casual and science game developed by Mazen Games and published by GrabTheGames. Released on March 12th 2021 has received 473 reviews of which 412 were positive and 61 were negative resulting in a rating of 8.1 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for science category.
8.1
412
61
-99%
9.75€
0.19€
2. Juno: New Origins
Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode. Juno: New Origins is a building, science and space sim game developed and published by Jundroo and LLC. Released on January 26th 2023 has received 3,118 reviews of which 2,807 were positive and 311 were negative resulting in a rating of 8.7 out of 10. Thanks to its incredible 97% discount, this game is now the #2 best deal in science games.
8.7
2,807
311
-97%
19.50€
0.63€
3. Kerbal Space Program
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics. Kerbal Space Program is a space, simulation and sandbox game developed by Squad and published by Private Division. Released on April 27th 2015 has received 127,162 reviews of which 121,084 were positive and 6,078 were negative resulting in an impressive rating of 9.4 out of 10. Thanks to its incredible 93% discount, this game is now the #3 best deal in science games.
9.4
121,084
6,078
-93%
39.99€
3.11€
4. Universe Sandbox
Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe. Universe Sandbox is a sandbox, space and simulation game developed and published by Giant Army. Released on August 24th 2015 has received 27,448 reviews of which 26,456 were positive and 992 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a significant 66% discount, this title has earned the #4 position in the best deals for science games.
9.4
26,456
992
-66%
28.99€
10.03€
5. while True: learn()
You’re a machine learning specialist who makes neural networks but your cat seems to be better at it. Now you must solve puzzles to build a cat-to-human translation system (who knows what else this cat is capable of!). Earn a fortune, buy kickass cat outfits, learn how machine learning really works! while True: learn() is a programming, simulation and education game developed and published by Luden.io. Released on January 17th 2019 has received 7,618 reviews of which 6,967 were positive and 651 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 65% discount, this title has earned the #5 position in the best deals for science games.
8.9
6,967
651
-65%
10.79€
3.85€
Free science games on Steam
Check out this fantastic list of free-to-play science games you can enjoy on Steam right now, updated on June 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play science games.
1. Cell to Singularity - Evolution Never Ends
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap. Cell to Singularity - Evolution Never Ends is a clicker, free to play and simulation game developed and published by Computer Lunch. Released on November 03rd 2021 has received 23,690 reviews of which 21,284 were positive and 2,406 were negative resulting in a rating of 8.8 out of 10. With 2,539 active players enjoying it for free, this strategy game has reached the #1 spot among the top free science games on Steam.
8.8
21,284
2,406
2,539
players