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% 127,900 votes
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~ 2. Factorio Feb 2016 Base Building Top 250 #6 EA
8.71 98% 39,046 votes
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~ 3. Portal Oct 2007 Puzzle Top 250 #7
8.69 98% 49,150 votes
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~ 4. RimWorld Oct 2018 Base Building Top 250 #21
8.62 98% 28,157 votes
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~ 5. Half-Life 2 Nov 2004 FPS Top 250 #25
8.60 97% 64,707 votes
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~ 9. Half-Life Nov 1998 FPS Top 250 #62
8.49 96% 25,660 votes
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~ 11. Bit Blaster XL Jan 2016 Action Top 250 #77
8.45 98% 5,058 votes
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~ 14. SOMA Sep 2015 Horror Top 250 #89
8.43 96% 15,133 votes
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~ 18. Subnautica Jan 2018 Survival Top 250 #122
8.39 94% 79,489 votes
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~ 19. Alien Swarm Jul 2010 Co-op Top 250 #126 Free
8.38 95% 18,119 votes
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~ 20. VVVVVV Sep 2010 Platformer Top 250 #130
8.38 96% 6,777 votes
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~ 21. Mass Effect 2 Jan 2010 RPG Top 250 #132
8.37 95% 10,678 votes
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~ 24. The Swapper May 2013 Puzzle Top 250 #143
8.35 96% 5,789 votes
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~ 25. BioShock Aug 2007 FPS Top 250 #145
8.35 94% 20,378 votes
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~ 29. Orbt XL Apr 2017 Casual Top 250 #161
8.33 98% 1,837 votes
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~ 33. DOOM May 2016 FPS Top 250 #177
8.31 93% 67,481 votes
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~ 35. Dead Space 2 Jan 2011 Horror Top 250 #196
8.30 95% 8,812 votes
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~ 36. Borderlands Oct 2009 FPS Top 250 #201
8.29 93% 22,954 votes
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~ 39. Warframe Mar 2013 Action Top 250 #212 Free
8.28 91% 202,638 votes
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~ 43. Mass Effect May 2008 RPG Top 250 #229
8.26 94% 10,182 votes
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~ 45. CrossCode Sep 2018 Action RPG Top 250 #244
8.25 95% 4,268 votes
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~ 52. Alien: Isolation Oct 2014 Horror
8.23 93% 24,968 votes
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~ 55. Half-Life 2: Episode One Jun 2006 FPS
8.22 94% 7,671 votes
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~ 58. Black Mesa May 2015 FPS EA
8.21 93% 12,931 votes
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~ 59. Quake Jun 1996 FPS
8.20 95% 2,520 votes
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~ 60. HIVESWAP: ACT 1 Sep 2017 Adventure
8.19 95% 2,940 votes
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~ 61. Race The Sun Dec 2013 Racing
8.19 94% 5,419 votes
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~ 62. Axiom Verge May 2015 Metroidvania
8.19 95% 3,077 votes
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~ 65. The Silent Age May 2015 Adventure
8.18 94% 4,720 votes
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~ 67. System Shock 2 Aug 1999 RPG
8.17 94% 4,307 votes
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~ 68. Total Annihilation Sep 1997 Strategy
8.17 96% 1,217 votes
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~ 69. Fallout 2 Dec 1998 RPG -50%
8.16 94% 4,542 votes
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~ 70. Out There Somewhere Mar 2016 Platformer
8.16 93% 6,570 votes
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~ 71. Starbound Jul 2016 Sandbox
8.15 91% 78,608 votes
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~ 72. Distance Sep 2018 Racing
8.15 94% 3,824 votes
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~ 73. A Story About My Uncle May 2014 Adventure
8.14 92% 11,487 votes
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~ 74. Ikaruga Feb 2014 Bullet Hell
8.14 95% 1,402 votes
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~ 75. The Ultimate DOOM Apr 1995 Classic
8.13 94% 3,618 votes
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~ 76. Cogmind Oct 2017 Rogue-like EA
8.12 97% 522 votes
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~ 77. Overload May 2018 Action
8.12 96% 799 votes
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~ 79. X-COM: UFO Defense Dec 1993 Strategy
8.11 94% 2,199 votes
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~ 82. HELLDIVERS™ Dec 2015 Co-op
8.10 92% 12,845 votes
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~ 84. Heat Signature Sep 2017 Action
8.10 93% 3,006 votes
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~ 87. Infested Planet Mar 2014 Strategy
8.08 94% 1,985 votes
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~ 90. Racket: Nx Jul 2018 Sports VRX
8.06 97% 352 votes
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~ 91. DOOM II: Hell on Earth May 1994 Classic
8.05 93% 2,450 votes
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1 92. Breathedge Sep 2018 Survival EA
8.05 94% 1,678 votes
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~ 94. Infinifactory Jun 2015 Puzzle
8.04 94% 1,470 votes
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1 95. Sven Co-op Jan 1999 Co-op Free
8.04 91% 12,184 votes
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2 96. Wolfenstein: The New Order May 2014 FPS
8.03 90% 28,095 votes
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3 98. Technobabylon May 2015 Adventure
8.03 95% 793 votes
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~ 99. Master of Orion 2 Nov 1996 Strategy
8.03 97% 322 votes
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~ 100. Reassembly Feb 2015 Building
8.03 93% 2,219 votes
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2 101. Templar Battleforce Sep 2015 Strategy
8.03 95% 672 votes
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~ 102. Fallout Sep 1997 RPG -50%
8.02 91% 6,821 votes
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~ 104. SpaceChem Mar 2011 Puzzle
8.02 92% 3,935 votes
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~ 105. Singularity Jun 2010 FPS
8.02 92% 2,758 votes
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~ 106. Sanctum 2 May 2013 Tower Defense
8.00 90% 12,621 votes
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~ 107. Rodina Jul 2014 Space EA
8.00 94% 1,132 votes
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1 108. Quake II Nov 1997 Action
7.99 93% 1,328 votes
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1 109. Into the Breach Feb 2018 Strategy
7.99 92% 3,724 votes
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~ 110. Space Pirates and Zombies Aug 2011 Space
7.99 92% 2,468 votes
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~ 112. Ghost 1.0 Jun 2016 Action
7.98 93% 1,362 votes
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~ 114. BioShock 2 Feb 2010 FPS
7.97 90% 9,260 votes
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1 115. Deep Rock Galactic Feb 2018 Co-op EA
7.96 91% 5,272 votes
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~ 117. BYTEPATH Feb 2018 Action
7.96 99% 128 votes
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~ 118. Prey May 2017 Sci-fi
7.96 89% 17,247 votes
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1 119. Descent Feb 1995 Classic
7.95 97% 260 votes
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1 120. X-Morph: Defense Aug 2017 Tower Defense
7.95 94% 744 votes
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1 122. Redirection Oct 2016 Casual
7.94 99% 121 votes
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~ 123. Dead Space Oct 2008 Horror
7.93 90% 9,525 votes
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~ 124. Original War Jun 2001 Strategy
7.93 93% 909 votes
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~ 125. Valley Aug 2016 Adventure
7.93 91% 3,250 votes
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~ 127. 1982 Jun 2017 Action Free
7.92 94% 562 votes
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~ 128. Rochard Nov 2011 Platformer
7.91 92% 1,611 votes
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~ 130. The Longest Journey Nov 2000 Adventure
7.91 92% 1,176 votes
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~ 131. Copy Kitty Apr 2018 Action
7.90 98% 125 votes
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~ 132. Uplink Aug 2006 Hacking
7.90 92% 1,701 votes
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1 133. RUINER Sep 2017 Cyberpunk
7.89 90% 4,453 votes
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1 136. Rush Rover Nov 2017 Action
7.88 97% 150 votes
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1 137. Solar Settlers Jul 2017 Strategy
7.88 99% 99 votes
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5 138. Starward Rogue Jan 2016 Bullet Hell -80%
7.88 94% 391 votes
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~ 139. Endless Sky Oct 2015 Space Free
7.88 90% 3,613 votes
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~ 141. Half-Life: Blue Shift Jun 2001 FPS
7.88 90% 3,883 votes
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~ 142. 1bitHeart Aug 2017 Casual
7.87 96% 233 votes
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~ 143. Spore Dec 2008 Simulation
7.87 88% 15,816 votes
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~ 144. Aliens vs. Predator Feb 2010 Action
7.87 89% 10,150 votes
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~ 145. Neon Chrome Apr 2016 Cyberpunk
7.87 93% 751 votes
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1 147. Shadowrun Returns Jul 2013 RPG
7.86 89% 9,295 votes
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1 148. FINAL FANTASY VIII Dec 2013 JRPG
7.86 89% 5,722 votes
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~ 150. Beyond Good & Evil Nov 2003 Adventure
7.86 91% 1,906 votes
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