Anyone with an Origin Access Premiere subscription now has access to the PC version of Sonic Mania through EA’s Origin storefront. For those unfamiliar with the service, EA Access Premiere is the higher tier version of the Origin Access service. This service provides access to a library of games, discounts to all games bought on the storefront, and “extra content” for new EA games for $15 a month.
It is the vanilla version of the game, meaning that the Encore DLC will still need to be bought separately.
UPDATE: According to twitter user @CodenameGamma, who hacks and reverse-engineers games like Sonic Mania, this version of the game adds the infamous Denuvo DRM back into the game. The Steam release of Sonic Mania originally released with this DRM, before it was removed due to fan outcry. As a result, this version of Sonic Mania will not be supported by the community.