Many games have a subscription and provide something of in game worth for that sub. GTA5 just did it. for $10 I get 500k. I pay $10 for my elder Scrolls and get some Crowns to buy cosmetics. This game came out before micro transactions so there wasn't a lot of extra fluff added. I think if there was some sort of credit sink, and it has to be cosmetic, like a Barc speeder or a jetpack. You could have those for sale and charge say 50 million. With a credit sink you can introduce a 500k per month for a $5 donation. Sell a starter pack. Newb armor, basic weapon and 150k for $5. Thats not going to make anyone win but sure as hell will add some quality of life for me. Its not 2003 and I'm in my 40's with a baby. I don't have time to no life this shiz anymore.
There are some paintings, some items that people collect to decorate houses with that could all become store stuff.
