The global online gambling market reached $87.69 billion in 2025 and is on track to hit $153.57 billion by 2030, growing at 11.9% annually (Grand View Research, 2025). Affiliates drive a large share of that growth. An estimated 74% of iGaming operators rely on affiliate marketing as their primary acquisition channel (Scaleo, 2025). The opportunity is massive, but so is the competition.