Attention Trainers! Get a first look at gameplay from Pokemon Scarlet Violet's paid DLC: The Hidden Treasure of Area Zero – releasing from this autumn!
Each game also gets its own unique piece of DLC so if you want to "catch'em'all" you have to pay for 2 games and 2 DLC's.
Honestly not sure why 2K, EA or Activision have not caught on to this genius way of incentivise people buying more copies of games, gamers clearly have no issues with it!