A nice idea in principle but in reality, it meant you literally couldn't
stop doing side quests or main missions because the energy was constantly depleting.
Not exact matches
Personally I wrapped up the
side -
quests and primary storyline in a shade over four hours, and didn't feel like I was rushing too badly, although it's fair to say that I didn't
stop on every puzzle to experiment wildly.
Stopping Dhoulmagus is your top priority, but there's much to see and
do on your journey, including lots of
side quests to complete, towns to wander around and treasures to track down.
The small errands and more substantial
side quests of these characters aren't all there is to
do in Horizon after the credits roll, though, and that's why I just can't
stop playing it.