Marvel's Guardians of the Galaxy
Microtransactions in Marvel's Guardians of the Galaxy are summarized as...
The game features a fairly standard Deluxe edition which includes some character skins, a digital art book, and the game Soundtrack. At this time this is the only "extra" content you can purchase on top of the original game.
In an interview one of the game directors has stated: It’s very important that on day one when players get this game, they can have access to everything there is about this game and to experience it. They can get all of the costumes or outfits that are available, they can find all the abilities as they progress through the game. It’s all there.👍
There are no additional purchases other than a "deluxe" version of the game. No microtransactions, no DLC.