Ahhh great news!
At launch, the game will also be available via the Epic Games Store, Greenman Gaming, the Humble Store, GameStop, and “additional digital retailers” with preorders starting on October 23rd. Steam, meanwhile, will be coming on later: RDR2 will launch through Valve’s store in December. The game will also be a launch title on the Google Stadia streaming platform in November.
and not just epic exclusive!