Esports, or electronic sports, is a global industry that emerged as a niche culture involving millions of viewers, enormous prize pools, and paid professionals competing in sold-out stadiums. But behind the spotlights and competitive drama lies an underpinning system beset by problems involving transparency, player incentive, cheating, virtual property, and corporate takeover of game worlds. Blockchain gaming presents novel solutions that have the potential to upset the way competitive gaming and esports operate.