Answering survey. Seems like for Solasta devs, every D&D CRPG which I've played except Dark Sun : Shattered lands(lv 3~9) and Eye of the Beholder 1 is "epic level". I recently ended Ravenloft : Strahd possession at lv 11 and then imported my save to Stone prophet which ended on lv 13.
I don't think that lv 12+ works well in 5E. In later levels, Solasta fells like almost a Oblivion style slog. But the class which I like to see the most is obvious warlock. Repealing blast + Eldritch blast in a game full of vertilicaty seems amazing.