I'm DMing a class free system now, and while we are having lots of fun I took a step back and examined what the players had created for themselves.
I concluded that a point-buy classless system wouldn't necessarily add much to D&D.
What you need is for the DMG to have clear rules-of-thumb for how to create custom prestige and base classes to fulfill the desires of the players. The math to watch for balance, etc.
These rules-of-thumb exist, it's how they create new classes themselves.
It wouldn't be without balance problems, but that's true of any point-buy system I've ever seen -- especially once you let the DM/Players add new abilities. If you thought controlling the synergies of multiclassing was hard.....
I concluded that a point-buy classless system wouldn't necessarily add much to D&D.
What you need is for the DMG to have clear rules-of-thumb for how to create custom prestige and base classes to fulfill the desires of the players. The math to watch for balance, etc.
These rules-of-thumb exist, it's how they create new classes themselves.
It wouldn't be without balance problems, but that's true of any point-buy system I've ever seen -- especially once you let the DM/Players add new abilities. If you thought controlling the synergies of multiclassing was hard.....