Today's game should need no introduction. System Shock is the spiritual predecessor of one of today's most popular games, Bioshock. Without further ado, the following is a quick synopsis of the game provided by abandonia:
"The game takes place somewhere in a dark future. It starts off with an anonymous hacker, who just managed to hack into TriOptium company's network. However, before he can get anything out of it, the TriOptium security guards bust him. Instead of giving him a life sentence in some prison or putting a bullet in his head, Edward Diego, a TriOptium Executive, gives this hacker an opportunity: hack into Citadel Space Station's AI (called Shodan) and he will be released from all the charges and also get valuable military grade neural implants as a nice bonus. The hacker, of course, takes the offer and succesfully hacks Shodan. Diego keeps his promise and after they install the implants, the hacker (you, the player) enters a deep healing sleep.
"The game starts off six months later. The player wakes up and finds out that the whole station has gone haywire. The AI Shodan, who has developed a god-like persona, has taken control of station and slaughtered all the humans aboard, leaving only mutans and his robotic servants to wander the hallways. As there's no one to control him, Shodan plans on unleashing the space stations weapons on planet earth. Its up to you to take out Shodan and get out of there alive.
"In a nutshell, System Shock is a roleplaying game with puzzle solving and FPS elements. You wander around the station in first-person perspective, pick up tons of items, fight against mutants and monsters, solve puzzles and problems and fight against Shodan's evil plans."
System shock is definitely worth a 10 in my books. If you've never played this game, you need to quit reading and download now. The download comes in at 120mb, a rather small game for such a huge magnitude. Do yourself a favor and download it now. The game does require dosbox so you will need to download dosbox if you haven't yet.
Download:
http://abandonia.com/en/games/24684/System+Shock.html