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% 135,446 votes
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~ 2. Factorio Feb 2016 Base Building Top 250 #4 EA
8.74 99% 45,412 votes
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~ 3. Portal Oct 2007 Puzzle Top 250 #8
8.70 98% 50,865 votes
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~ 4. RimWorld Oct 2018 Base Building Top 250 #14
8.66 98% 36,114 votes
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~ 5. Half-Life 2 Nov 2004 FPS Top 250 #24
8.61 97% 67,912 votes
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~ 9. Half-Life Nov 1998 FPS Top 250 #55
8.51 96% 27,548 votes
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~ 12. Bit Blaster XL Jan 2016 Action Top 250 #86
8.44 97% 5,185 votes
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~ 13. Subnautica Jan 2018 Survival Top 250 #87
8.44 94% 88,782 votes
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~ 14. SOMA Sep 2015 Horror Top 250 #88
8.44 96% 16,056 votes
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~ 19. VVVVVV Sep 2010 Platformer Top 250 #128
8.38 96% 6,878 votes
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~ 20. Alien Swarm Jul 2010 Co-op Top 250 #130 Free
8.38 95% 18,189 votes
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~ 23. Mass Effect 2 Jan 2010 RPG Top 250 #138
8.37 95% 10,935 votes
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~ 24. Orbt XL Apr 2017 Casual Top 250 #139
8.37 98% 1,918 votes
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~ 25. The Swapper May 2013 Puzzle Top 250 #149
8.36 96% 5,854 votes
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~ 26. BioShock Aug 2007 FPS Top 250 #153
8.35 94% 20,587 votes
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~ 28. Warframe Mar 2013 Action Top 250 #158 Free
8.35 92% 234,563 votes
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~ 31. DOOM May 2016 FPS Top 250 #170
8.33 93% 71,167 votes
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~ 34. CrossCode Sep 2018 Action RPG Top 250 #191
8.31 96% 5,516 votes
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~ 36. Dead Space 2 Jan 2011 Horror Top 250 #202
8.30 95% 9,045 votes
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~ 38. Borderlands Oct 2009 FPS Top 250 #209
8.30 94% 23,769 votes
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1 46. Mass Effect May 2008 RPG Top 250 #244
8.27 94% 10,433 votes
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~ 47. Half-Life: Opposing Force Nov 1999 FPS
8.26 95% 5,246 votes
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~ 49. Black Mesa May 2015 FPS EA
8.25 93% 14,196 votes
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~ 55. Alien: Isolation Oct 2014 Horror
8.24 93% 25,749 votes
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~ 58. Half-Life 2: Episode One Jun 2006 FPS
8.23 94% 7,966 votes
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~ 60. Quake Jun 1996 FPS
8.20 95% 2,607 votes
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~ 61. Race The Sun Dec 2013 Racing
8.20 94% 5,529 votes
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~ 63. HIVESWAP: ACT 1 Sep 2017 Adventure
8.19 95% 3,023 votes
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1 64. The Silent Age May 2015 Adventure
8.18 94% 4,843 votes
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1 66. Axiom Verge May 2015 Metroidvania
8.18 95% 3,158 votes
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1 67. Total Annihilation Sep 1997 Strategy
8.18 96% 1,265 votes
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1 68. System Shock 2 Aug 1999 RPG
8.18 94% 4,405 votes
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~ 70. Fallout 2 Dec 1998 RPG
8.18 94% 4,878 votes
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~ 71. Starbound Jul 2016 Sandbox
8.17 91% 80,690 votes
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~ 72. Out There Somewhere Mar 2016 Platformer
8.16 93% 6,598 votes
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~ 73. Distance Sep 2018 Racing -35%
8.16 94% 4,090 votes
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~ 74. A Story About My Uncle May 2014 Adventure
8.15 92% 11,875 votes
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~ 75. Cogmind Oct 2017 Rogue-like EA
8.15 98% 565 votes
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~ 76. Deep Rock Galactic Feb 2018 Co-op EA
8.15 93% 7,469 votes
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~ 77. Breathedge Sep 2018 Survival EA
8.14 94% 2,693 votes
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~ 78. Overload May 2018 Action
8.14 96% 888 votes
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~ 79. Ikaruga Feb 2014 Bullet Hell
8.13 95% 1,435 votes
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~ 81. Heat Signature Sep 2017 Action
8.12 94% 3,290 votes
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~ 82. Into the Breach Feb 2018 Strategy
8.12 93% 4,967 votes
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~ 83. The Ultimate DOOM Apr 1995 Classic
8.12 93% 3,733 votes
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~ 84. HELLDIVERS™ Dec 2015 Co-op
8.12 92% 13,840 votes
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~ 86. X-COM: UFO Defense Dec 1993 Strategy
8.11 94% 2,256 votes
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~ 89. Subsurface Circular Aug 2017 Adventure
8.08 95% 1,049 votes
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~ 90. Infested Planet Mar 2014 Strategy
8.07 94% 2,017 votes
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~ 92. Racket: Nx Jul 2018 Sports VRX
8.07 97% 356 votes
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~ 93. Infinifactory Jun 2015 Puzzle
8.07 94% 1,557 votes
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~ 94. Sven Co-op Jan 1999 Co-op Free
8.06 91% 12,687 votes
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1 95. DOOM II: Hell on Earth May 1994 Classic
8.06 93% 2,558 votes
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1 96. Fallout Sep 1997 RPG
8.06 92% 7,324 votes
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~ 98. Wolfenstein: The New Order May 2014 FPS
8.05 90% 28,915 votes
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~ 101. Reassembly Feb 2015 Building
8.04 93% 2,332 votes
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~ 102. Master of Orion 2 Nov 1996 Strategy
8.03 97% 340 votes
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~ 103. Technobabylon May 2015 Adventure
8.02 95% 809 votes
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~ 104. Singularity Jun 2010 FPS
8.02 92% 2,881 votes
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~ 105. SpaceChem Mar 2011 Puzzle
8.02 92% 3,977 votes
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~ 108. Sanctum 2 May 2013 Tower Defense
8.01 90% 12,807 votes
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~ 109. Templar Battleforce Sep 2015 RPG
8.00 95% 695 votes
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~ 110. Rodina Jul 2014 Space EA -34%
8.00 94% 1,165 votes
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~ 111. Quake II Nov 1997 Action
7.99 93% 1,403 votes
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1 112. Ghost 1.0 Jun 2016 Action
7.99 93% 1,417 votes
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~ 114. Prey May 2017 Sci-fi -50%
7.98 90% 18,829 votes
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~ 116. Space Pirates and Zombies Aug 2011 Space
7.98 92% 2,485 votes
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~ 117. BYTEPATH Feb 2018 Action
7.98 99% 137 votes
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~ 118. BioShock 2 Feb 2010 FPS
7.97 90% 9,391 votes
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~ 120. Valley Aug 2016 Adventure
7.96 91% 3,912 votes
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~ 121. 1982 Jun 2017 Action Free
7.96 95% 572 votes
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~ 122. RUINER Sep 2017 Cyberpunk
7.96 91% 5,159 votes
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~ 123. Original War Jun 2001 Strategy
7.95 93% 961 votes
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~ 125. Redirection Oct 2016 Casual
7.94 99% 121 votes
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~ 126. X-Morph: Defense Aug 2017 Tower Defense
7.94 94% 787 votes
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~ 127. Dead Space Oct 2008 Horror
7.94 90% 9,776 votes
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~ 128. Descent Feb 1995 Classic
7.94 96% 268 votes
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~ 129. Rush Rover Nov 2017 Action
7.93 98% 152 votes
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~ 131. Rochard Nov 2011 Platformer
7.92 92% 1,618 votes
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~ 132. Copy Kitty Apr 2018 Action
7.92 98% 130 votes
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~ 133. 1bitHeart Aug 2017 Casual
7.92 96% 270 votes
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~ 134. Solar Settlers Jul 2017 Strategy
7.90 99% 105 votes
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1 137. Endless Sky Oct 2015 Space Free
7.90 90% 3,686 votes
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1 139. Starward Rogue Jan 2018 Bullet Hell
7.89 94% 398 votes
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1 140. Uplink Aug 2006 Hacking
7.89 91% 1,735 votes
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~ 141. Aliens vs. Predator Feb 2010 Action
7.89 89% 10,323 votes
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1 142. Spore Dec 2008 Simulation
7.88 88% 16,462 votes
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2 144. Half-Life: Blue Shift Jun 2001 FPS
7.88 90% 3,995 votes
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~ 145. The Longest Journey Nov 2000 Adventure
7.88 92% 1,212 votes
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~ 146. Beyond Good & Evil Nov 2003 Adventure
7.88 91% 1,954 votes
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~ 147. Neon Chrome Apr 2016 Cyberpunk
7.88 93% 778 votes
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~ 148. Shadowrun Returns Jul 2013 RPG
7.87 89% 9,565 votes
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~ 149. FINAL FANTASY VIII Dec 2013 JRPG
7.86 89% 5,828 votes
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