His mansion and parties seem like desperate attempts to fill the emotional void inside himself. But it's hollow, as he's now seen.
The way to fill it is by dedicating himself to something that has no financial upside--doing good, in the vein of Clinton, Carter, and Gates. That will give him the kind of fulfillment that a candy wall never will.
In the course of doing so, he may even meet someone similarly like minded.
Less altruistically, he could also create games and release them pseudonymously through a shell company, so he knows any success is because it's a good game, and not because it's from the creator of Minecraft.