In 1987, Games Workshop released a fantasy miniature wargame called Warhammer 40,000, which was a science-fiction spinoff of Warhammer. Like Warhammer, Warhammer 40,000 obliged players to buy proprietary models from Games Workshop. Warhammer 40,000 became even more successful than Warhammer. The success of the Warhammer games promoted the sales of Games Workshop's line of gaming models.