Top 150 best Steam games of all time tagged with Sci-fi, according to gamer reviews.

Platforms

Include games from these platforms.

Movement, rank, title, date, platforms and tag

Score

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~ 1. Portal 2 Apr 2011 Puzzle Top 250 #1
8.82 99% 138,419 votes
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~ 2. Factorio Feb 2016 Base Building Top 250 #4 EA
8.74 99% 46,924 votes
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~ 3. Portal Oct 2007 Puzzle Top 250 #8
8.70 98% 52,166 votes
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~ 4. RimWorld Oct 2018 Base Building Top 250 #13
8.66 98% 38,075 votes
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~ 5. Half-Life 2 Nov 2004 FPS Top 250 #23
8.61 97% 69,428 votes
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~ 9. Half-Life Nov 1998 FPS Top 250 #57
8.51 96% 28,319 votes
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~ 11. Subnautica Jan 2018 Survival Top 250 #78
8.46 94% 93,518 votes
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~ 13. SOMA Sep 2015 Horror Top 250 #88
8.44 96% 16,656 votes
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~ 15. INSIDE Jul 2016 Atmospheric Top 250 #94
8.43 95% 20,303 votes
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~ 20. VVVVVV Sep 2010 Platformer Top 250 #128
8.38 96% 6,946 votes
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~ 23. Alien Swarm Jul 2010 Co-op Top 250 #133 Free
8.38 95% 18,286 votes
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~ 24. Orbt XL Apr 2017 Casual Top 250 #136
8.37 98% 2,055 votes
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~ 25. Mass Effect 2 Jan 2010 RPG Top 250 #147
8.36 95% 11,072 votes
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~ 26. BioShock Aug 2007 FPS Top 250 #153 -75%
8.35 94% 20,717 votes
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~ 27. The Swapper May 2013 Puzzle Top 250 #155
8.35 96% 5,912 votes
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~ 29. DOOM May 2016 FPS Top 250 #163
8.34 93% 72,616 votes
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~ 30. Warframe Mar 2013 Action Top 250 #164 Free
8.33 92% 240,676 votes
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~ 36. Dead Space 2 Jan 2011 Horror Top 250 #191
8.31 95% 9,293 votes
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~ 38. CrossCode Sep 2018 Action RPG Top 250 #207
8.30 95% 6,210 votes
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~ 41. Borderlands Oct 2009 FPS Top 250 #216 -75%
8.29 93% 24,086 votes
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~ 46. Mass Effect May 2008 RPG Top 250 #249
8.26 94% 10,601 votes
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1 51. SteamWorld Heist Jun 2016 Turn-Based
8.25 96% 2,711 votes
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1 52. Black Mesa May 2015 FPS EA
8.25 93% 14,774 votes
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1 56. STEINS;GATE 0 May 2018 Visual Novel
8.24 97% 1,261 votes
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1 57. Alien: Isolation Oct 2014 Horror
8.24 93% 26,196 votes
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1 60. Half-Life 2: Episode One Jun 2006 FPS
8.23 94% 8,230 votes
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~ 62. Quake Jun 1996 FPS
8.20 95% 2,700 votes
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~ 64. Race The Sun Dec 2013 Racing
8.20 94% 5,551 votes
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~ 66. HIVESWAP: ACT 1 Sep 2017 Adventure
8.19 95% 3,063 votes
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~ 67. Deep Rock Galactic Feb 2018 Co-op EA
8.18 93% 8,883 votes
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~ 68. The Silent Age May 2015 Adventure -90%
8.18 94% 4,947 votes
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~ 69. Fallout 2 Dec 1998 RPG
8.17 94% 5,001 votes
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~ 70. System Shock 2 Aug 1999 RPG
8.17 94% 4,456 votes
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~ 71. Axiom Verge May 2015 Metroidvania
8.17 94% 3,220 votes
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~ 72. Total Annihilation Sep 1997 Strategy
8.16 96% 1,299 votes
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~ 73. Starbound Jul 2016 Sandbox
8.15 91% 81,499 votes
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~ 75. Out There Somewhere Mar 2016 Platformer
8.15 93% 6,616 votes
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~ 76. Cogmind Oct 2017 Rogue-like EA -10%
8.15 97% 588 votes
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~ 77. A Story About My Uncle May 2014 Adventure
8.15 92% 18,099 votes
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~ 78. Distance Sep 2018 Racing
8.15 94% 4,198 votes
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~ 79. Ikaruga Feb 2014 Bullet Hell
8.14 95% 1,455 votes
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~ 80. Heat Signature Sep 2017 Space
8.13 94% 3,403 votes
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~ 81. The Ultimate DOOM Apr 1995 Classic
8.13 94% 3,871 votes
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~ 82. ISLAND Aug 2018 Visual Novel
8.12 98% 361 votes
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~ 83. Breathedge Sep 2018 Survival EA
8.12 94% 3,007 votes
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~ 84. Overload May 2018 Action
8.12 96% 937 votes
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~ 85. Into the Breach Feb 2018 Strategy
8.11 93% 5,374 votes
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~ 86. X-COM: UFO Defense Dec 1993 Strategy -75%
8.11 94% 2,285 votes
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~ 87. HELLDIVERS™ Dec 2015 Co-op
8.10 91% 14,157 votes
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~ 92. Infested Planet Mar 2014 Strategy -75%
8.09 94% 2,047 votes
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~ 93. DOOM II: Hell on Earth May 1994 Classic
8.07 93% 2,642 votes
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~ 94. Subsurface Circular Aug 2017 Adventure -20%
8.07 95% 1,106 votes
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~ 95. Infinifactory Jun 2015 Puzzle
8.07 94% 1,587 votes
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~ 96. Sven Co-op Jan 1999 Co-op Free
8.07 91% 13,054 votes
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~ 99. Racket: Nx Jul 2018 Sports VRX
8.06 97% 364 votes
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~ 100. Fallout Sep 1997 RPG
8.06 92% 7,511 votes
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~ 102. Wolfenstein: The New Order May 2014 FPS
8.04 90% 29,433 votes
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1 103. Technobabylon May 2015 Adventure
8.03 95% 833 votes
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1 104. Reassembly Feb 2015 Building
8.03 93% 2,406 votes
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~ 106. SpaceChem Mar 2011 Puzzle
8.02 92% 3,999 votes
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~ 107. Singularity Jun 2010 FPS
8.01 92% 2,931 votes
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1 109. Master of Orion 2 Nov 1996 Strategy
8.01 97% 352 votes
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~ 110. Rodina Jul 2014 Space EA
8.00 94% 1,185 votes
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~ 111. BYTEPATH Feb 2018 Action
8.00 99% 148 votes
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~ 112. Sanctum 2 May 2013 Tower Defense
8.00 90% 12,861 votes
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~ 113. Templar Battleforce Sep 2015 RPG
7.99 95% 710 votes
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~ 114. Ghost 1.0 Jun 2016 Action
7.99 93% 1,440 votes
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~ 116. 1982 Jun 2017 Action Free
7.99 95% 579 votes
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~ 117. Space Pirates and Zombies Aug 2011 Space
7.98 92% 2,493 votes
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2 119. Valley Aug 2016 Adventure -75%
7.97 91% 4,240 votes
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~ 120. Prey May 2017 Sci-fi
7.97 89% 19,532 votes
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3 122. Quake II Nov 1997 Action
7.97 93% 1,459 votes
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~ 124. RUINER Sep 2017 Cyberpunk
7.96 91% 5,548 votes
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~ 125. BioShock 2 Feb 2010 FPS -75%
7.96 90% 9,472 votes
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1 126. Original War Jun 2001 Strategy
7.95 93% 982 votes
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1 127. Copy Kitty Apr 2018 Action
7.95 99% 143 votes
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~ 128. Descent Feb 1995 Classic -30%
7.94 96% 272 votes
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~ 129. Redirection Oct 2016 Casual
7.94 99% 120 votes
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~ 130. Dead Space Oct 2008 Horror
7.94 90% 10,017 votes
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~ 131. Rush Rover Nov 2017 Action
7.94 98% 157 votes
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~ 133. Solar Settlers Jul 2017 Strategy
7.93 99% 114 votes
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~ 134. X-Morph: Defense Aug 2017 Tower Defense
7.92 93% 820 votes
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~ 135. Rochard Nov 2011 Platformer
7.92 92% 1,624 votes
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~ 137. Endless Sky Oct 2015 Space Free
7.90 90% 3,741 votes
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3 140. CHAOS;CHILD 24 days Visual Novel
7.89 97% 153 votes
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1 141. Half-Life: Blue Shift Jun 2001 FPS
7.89 90% 4,130 votes
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1 142. Aliens vs. Predator Feb 2010 Action
7.89 89% 10,503 votes
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1 143. 1bitHeart Aug 2017 Casual
7.89 95% 293 votes
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~ 144. The Longest Journey Nov 2000 Adventure
7.88 92% 1,239 votes
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~ 145. Uplink Aug 2006 Hacking
7.88 91% 1,745 votes
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~ 146. Beyond Good & Evil Nov 2003 Adventure
7.88 91% 1,987 votes
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1 147. Spore Dec 2008 Simulation
7.88 88% 16,839 votes
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1 150. Neon Chrome Apr 2016 Cyberpunk
7.87 93% 790 votes
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