Square Enix faced challenges in promoting the Dragon Quest series, specifically Dragon Quest VIII, due to a lack of North American presence and the single-player nature of the game. To engage fans, they created the 'Slime Knights' community, which featured interactive quests that boosted brand loyalty and consumer education. The strategy resulted in significant member growth and over 600,000 units sold of Dragon Quest VIII, making it the most successful release since the original Dragon Warrior.