Diablo I, when I was only 10 years old or something. Dark as hell, creepy music (after the first time, I never turned on the speakers while playing), enemies come out of nowhere sometimes.
Diablo II was much easier for me to manage though.
Halo 3 was creepy too, although only in certain parts of one level: Cortana. Cortana rambling like a deranged madman and screaming in pain while Gravemind shouts and yells at you with intense fury made me jump 10 feet into the air several times, especially when he shouted ARGHHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!
Carlos Rivera: Corsair Brotherhood Pirate - Retired, shifted to Tripoli Shipyard's Research and Development engineering teams Anthony Cameron: Guild Core Bounty Hunter - Killed in Action, committed suicide after being trapped in Omicron Minor following its destruction Juan Ruiz: Outcast Ghost of Razgriz Pirate - Killed in Action, killed by the Sirius Coalition Revolutionary Army during Bretonian piracy raid Michael Winchester: Liberty Security Force Agent - Missing in Action, likely killed during Rheinland espionage mission or trapped in Rheinland Space Eric McCormick: Order Pilot - Retired, shifted to planetside training of new recruits