I tend to prefer SS1 over SS2 for a few reasons as well, better puzzles, actual cyberspace, better plot, etc. A lot of people seem to interpret SS1's story as SHODAN going nuts, but when you
read the logs in order of their dates, SHODAN doesn't actually start talking with a god complex until Diego plants the idea. It gives the impression that Deigo (even indirectly) controls or has influence over the AI, making SHODAN both a victim and a manifestation of his insanity. While I like SS2, the whole "Haha! i'm a God/Supervillan just because!" plot really chafed me after playing SS1. Also, the remake does look
smexy.
Remembered a few others:
-The Elder Scrolls: Daggerfall (circa 1996) Another true classic, you can be a vampire, werewolve, own a house, horse, cart, and boat. Take on an infinite number of randomly generated quests, create custom spells and enchanted gear, or travel the vast (no really) continent looking for hidden points of interest. In many respects its better than its successors which have often left out or hobbled many of the elements and features of their predecessor. Being able to create a character to be alergic to sunlight, silver, and only be able cast spells at night, can make for some interesting fun.
-Terra Nova: Strike Force Centauri (circa 1996) A gem published by Looking Glass, you pilot a combat suit with up to 3 team mates through various missions to defend your home colony from being invaded by the Earths Hegemony government. There are various types of suits, weapons, and regions to go through that make it quite interesting.
-Spectre VR (circa 1991) A virtual land scape shooter that holds a number of secret warps, power ups, and other assorted fun. There were two other wire frame shooters similar to it around the same time period, but I just can't seem to remember the names or find any clues through google. T_T
-Cholo (circa 1986) In this game the world has been blasted to dust by nuclear fire. Thankfully you and a few others are safe in your bunker. Sorry, did I say safe? I meant trapped. You must hack various robots on the surface to explore and find a way to free yourselves from your dome prison so you might reclaim the surface. Playing the original might be a bit off putting, thankfully there's a faithful (free) remake made in 2005 lurking around.
-Metaltech: Earth Seige (circa 1994-1996) Before it became known as the Tribes Series, it originally started out as a series of first person mech warfare games similar to Mechwarrior. Both Earthseige and Earthseige 2 are interesting games where salvaging weapons and blasting mechs can be both fun and profitable. Both are available for free (with a few other later titles) off tribesuniverse.com.
-Marathon Trilogy (circa 1994-1996) This trilogy are largely regarded as the spiritual predecessors of the Halo series. It includes things like conversing with AI's, fighting aliens, and makes heavy use of story telling through terminals. If your interested in how it all began (or in mining what idea's they may have left out), it may be worth a look.
-Amulets and Armor (circa 1997) An atmospheric little adventure game with a number of classes and systems similar to Ultima Underworld, if your interested in a different perspective or examining some of the different approaches and asthetics its certainly worth a look.
-Shadow Warrior (circa 1997) Considered a (racist) clone of Duke Nukem, Shadow Warrior has a number of interesting new mechanics for its time, including Sticky Grenades, and a bonafied Nuclear Warhead (protip: don't be in the same room, or zip code when firing). As to be expected it has similar style of humor to Duke Nukem. It recently got a remake in 2013, but the original is still worth checking out.
-Rise of the Triad (circa 1994) You play as a group of operatives hunting down cultists, with often frantic (and explosive!) rocket based results. This title also recently got a remake in 2013.
-Lands of Lore (circa 1993-1997-1999) This fantasy series involves various puzzle solving and combat elements throughout the game, and follows a similar genesis to the Terminator series 2029 to Future Shock in term's of mobility.
-Witchaven series (circa 1995-1996) Before Duke Nukem 3D, there was witchaven. Not a spectacular series (some consider it a heretic/hexen clone, but with swords), but if were fishing for forgotten titles, might as well mention it.