What unique business strategy did Epic Games Store use at launch to attract game developers away from Steam?

Epic Games shook up the digital distribution landscape when it launched its game store in 2018. The company implemented an aggressive strategy to compete with established platforms like Steam, using various tactics to attract both developers and players. This poll tests your knowledge about one of their most controversial yet effective market penetration approaches that helped them gain significant market share.

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They offered developers an 88/12 revenue split (compared to Steam's 70/30)
They provided free game engine licenses to any developer publishing exclusively on their platform
They guaranteed minimum sales figures or would cover the difference
They offered developers priority access to Fortnite crossover promotional events