DLSite : A Japanese gaming site (available in English and many other languages) that specializes in "doujin" independent games from that country, nearly all digital downloads at lower prices. Has a "dark side" version that specializes in adult content, but can be avoided entirely if not interested. Pays 7.5% to 12% on referrals that lead to a sale.
Itch.io : Popular indie game digital distribution platform. Anyone who creates an account can refer sales for about 10%, but an application is required to access the more advanced portion of the program that provides free review copies of games.
Play-Asia : A video game site that specializes in imports from Japan and China including toys, books/comics and movies. Pays you a percentage of each referral that leads to a purchase. The percentage varies by rank in a tier system, which goes up with consistent monthly sales. Payouts are to PayPal, Skrill, store credit (5% bonus), or wire transfers if cashing out over $50 USD.