Mannahnin
Scion of Murgen (He/Him)
I can't give a comprehensive answer from experience like Justice & Rule did, but based on what I've seen of it so far, DC20 is the new game I'm aware of which sounds most like it might fit your needs.
DCC might also work if you run it using a grid, but given the desire for Neo-Trade style I suspect the swinginess and randomness might be too much.
The criterion I think I'm most wary of is wanting it to be well designed and balanced for high level play. I think games which are actually robustly tested at high level and well designed for it are pretty rare. Something like Pathfinder or 4E are the most likely games to be able to clear that hurdle.
DCC might also work if you run it using a grid, but given the desire for Neo-Trade style I suspect the swinginess and randomness might be too much.
The criterion I think I'm most wary of is wanting it to be well designed and balanced for high level play. I think games which are actually robustly tested at high level and well designed for it are pretty rare. Something like Pathfinder or 4E are the most likely games to be able to clear that hurdle.