The first commercially available role-playing game, Dungeons & Dragons (D&D), was published in 1974 by Gygax's TSR.  TSR marketed the game as a niche product.  Gygax expected to sell about 50,000 copies.[14]  After establishing itself in boutique stores it developed a cult following among college students and SF fandom.[8] The game's growing success spawned cottage industries and a variety of peripheral products.  In a few years other fantasy games appeared, some of which blatantly copied the look and feel of the original game. One of the earliest competitors was Tunnels and Trolls (1975).