Quake II (1997)

sequel bloody death run and gun steam achievements time limit online easter egg one-man army boss fight explosion digital distribution voice acting human wasd movement real-time combat difficulty level been here before multiplayer lan swimming darkness invisibility quicksaving traps mercenary open-source backtracking vent crawling severed limbs aliens robots mutants extreme violence gore system countdown timer game reference self-referential humor tentacles corpse secret area sequence breaking mod support pc to console port steam cloud teleportation silent protagonist underwater gameplay developer cameo temporary invincibility camping moving platforms playstation mouse support interactive achievement awards 1998 splash damage alien languages selective invincibility mech god mode shielded enemies split-screen multiplayer zero point achievements grapple esports bots in-game map editor griefing team killing dial-up wide area network game operation clan capture the flag strafe-jumping death match multiplayer scoreboard compact disc secret areas within secret areas source port