The Epic First Run programme allows developers of any size to claim 100% of revenue if they agree to make their game exclusive on the Epic Games Store for six months.
After the six months are up, the game will revert to the standard Epic Games Store revenue split of 88% for the developer and 12% for Epic Games.
Not that I want to defend EGS here, but I would like to point out that they actually have had a shopping cart for a bit now. Hilarious how long it took them to implement, but they do in fact have one now.
What’s even more hilarious is they have had one in the Unreal Engine store for much longer.