Ready or Not

Microtransactions in Ready or Not are summarized as...

The game features a "Supporter Edition" that features some exclusive skins and also includes the first expansion pack, which is yet to be released. This edition is significantly more expensive than the base game.

Has a "deluxe" edition of the game which features (almost) nothing but in-game cosmetic items.
Includes all future updates, but there are optional DLC you can purchase.