Best Science Steam Games on Sale

Unlike generic lists, our game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated science games.

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Quantum Conundrum
Quantum Conundrum Find and rescue your uncle by using his newest invention to work your way through a crazy complex mansion as you switch between dimensions and solve puzzles!
Price -89% 0.98€
Rating 8.1
Release 21 Jun 2012
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SpaceChem
SpaceChem Zachtronics is back with an ambitious new design-based puzzle game. Take on the role of a Reactor Engineer working for SpaceChem, the leading chemical synthesizer for frontier colonies. Construct elaborate factories to transform raw materials into valuable chemical products!
Price -71% 2.92€
Rating 8.9
Release 02 Mar 2011
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Osmos
Osmos Enter the ambient world of Osmos: elegant, physics-based gameplay, dreamlike visuals, and a minimalist, electronic soundtrack. Your objective is to grow by absorbing other motes. Propel yourself by ejecting matter behind you. But be wise: ejecting matter also shrinks you. Relax - good things come to those who wait.
Price -96% 0.35€
Rating 8.2
Release 18 Aug 2009
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Portal
Portal Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
Price -17% 8.10€
Rating 9.7
Release 10 Oct 2007
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Most played science games

1. Kerbal Space Program
10,242 players
121,084
6,078
Rating 9.4
2. Cell to Singularity - Evolution Never Ends
4,208 players
21,284
2,406
Rating 8.8
3. Universe Sandbox
581 players
26,456
992
Rating 9.4
4. Stationeers
447 players
6,040
1,026
Rating 8.3
5. Juno: New Origins
79 players
2,807
311
Rating 8.7
6. Planetary Life
57 players
770
44
Rating 8.9
7. Thrive
55 players
1,228
99
Rating 8.8
8. The Sapling
51 players
1,342
152
Rating 8.5
9. while True: learn()
11 players
6,967
651
Rating 8.9
10. Sokobond
5 players
609
40
Rating 8.8
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All ratings 7 or more 7.5 or more 8 or more 8.5 or more 9 or more 9.5 or more
All prices 30€ or less 20€ or less 10€ or less 5€ or less 1€ or less Free to play
All games VR excluded VR supported VR only

Most played science games

1. Kerbal Space Program
10,242 players
121,084
6,078
Rating 9.4
2. Cell to Singularity - Evolution Never Ends
4,208 players
21,284
2,406
Rating 8.8
3. Universe Sandbox
581 players
26,456
992
Rating 9.4
4. Stationeers
447 players
6,040
1,026
Rating 8.3
5. Juno: New Origins
79 players
2,807
311
Rating 8.7
6. Planetary Life
57 players
770
44
Rating 8.9
7. Thrive
55 players
1,228
99
Rating 8.8
8. The Sapling
51 players
1,342
152
Rating 8.5
9. while True: learn()
11 players
6,967
651
Rating 8.9
10. Sokobond
5 players
609
40
Rating 8.8