Pathfinder Kingmaker - Solo Challenge Sylvan Sorcerer - Lantern King
Game took me 77 hours to complete solo on challenging difficulty.
This is the final boss of the game and it's pretty much a trial on error. Some-times he goes down rather quick and sometimes you just die.
Pet is Smilodon. He is pretty strongh throughout the game. Only in the last 2 chapters he can not do much anymore, the damage is just too severe and he misses quiet often.