It wasn't Riker, it was Wesley Crusher. Riker was the one who brought the game on board the ship from Risa (scene with a Risa hooker at the beginning of the episode who seduced Riker into putting the glasses on). I believe this was the episode that led to Next Generation watchers expressing in disgust, that Wesley should be the Captain, or at least the XO, since Wesley saved the ship more often than anyone else on board. Wesley didn't age that well on the show. But Wil Wheaton definitely redeemed himself in Felicia Day's "The Guild" where he shows up -- in a kilt! -- as the leader of a rival guild in Season 3. Sex, lies, and gaming battles happened from then on. Good times! Okay, now I have outed myself as a total nerd.