Picking just 1 is tough as I've been gaming since 1979. I'll go with 5 all-time favorites. :nerd: X-Wing/Tie Fighter (1993/1994) - These were some of the most amazing space combat games ever made. The missions felt important and the game play is still better than most space shooters today. The graphics (at the time) were pretty astounding and in 1995 they released a full voice version. (We used to play games with mostly text as they were on space limited floppy disks.) Battlefield 1942 (2002) It was an amazingly different shooter from anything else with a fantastic offline MP mode and some great mods, spawning Desert Combat and many others. I have never played a shooter more than that one. Privateer (1994) As a fan of the Wing Commander series, it was great to get an open world space adventure made by the same team. The freedom you had was a wonderful new experience. The upcoming Star Citizen is a spiritual successor. Civilization (series) (1991-present) From day one, this game... It's midnight, must go to bed... OK. Just one more turn... Look back at clock; suddenly it's 3am. So addictive. M.U.L.E. (1983, Atari/Commodore) This was an economics simulation that was way ahead of it's time. I still now play a web based version of the exact same game. The game-play has aged very well as I can't imagine suffering through any of the other games from the 80s. Honorable mention to Morrowind as my first, fantastic, open world RPG adventure.