The Temple of Elemental Evil is an RPG by Troika Games. It is a re-creation of the classic Dungeons & Dragons adventure of the same name using the 3.5 edition rules. The turn-based tactical combat was generally thought to be implemented very well, and is arguably the most faithful representation of the then-current pen-and-paper rules in a computer game. The Temple of Elemental Evil remains the only D&D related computer game set in the original Greyhawk setting. Thus making it the only one featuring a D&D world designed by the D&D co-creator Gary Gygax himself.