I'd advise you to have smart battles - people need to grind to compensate suboptimal build choices. It's much healthier to have this as an option rather than force to restart the story.
This is specially more important if you make new classes, abilities and change encounters and enemies.
The idea of having the game balanced around a specific level, like 50, can work adequately, even if the optional content (like deep dungeon) is 50+. I'm saying that having unbalanced gameplay at higher level can be interesting.
This is specially more important if you make new classes, abilities and change encounters and enemies.
The idea of having the game balanced around a specific level, like 50, can work adequately, even if the optional content (like deep dungeon) is 50+. I'm saying that having unbalanced gameplay at higher level can be interesting.