I dont understand the fascination of both Mass effect and System Shock... But whatever every man and his cup of tea.
System Shock 2 easily trumped everything else in terms of atmosphere for half a decade, easily.
Personally, favorites are the Dead Space franchise (best tie-in media of any franchise, IMO), Halo, Syndicate, Deus Ex... pretty much any videogame science fiction, really.
the original elite from David Braben and Ian Bell
freespace 1 and 2
beneath a steel sky
darkreign 1 and 2
earth 21xx series
dune 1 and 2
Note I have not labeled them in Rank because that would be hard. Also there is some in there I find am not sure the fit Sci fi genre.
[Edited by ServiusTheBear, 7/7/2013 7:49:59 AM]
Captain Fizz Meets The Blaster-Trons
Crusader No Remorse / No Regret
-X-Wing / Tie Fighter series
X2 The Threat
[Edited by Jethro, 7/7/2013 10:14:26 AM]
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