Idle Online Universe RPG

As much as I like the effect of the fortress I dislike the name. It just doesn't fit the theme.

A fortress is something strong where you can defend or hide. At least it is connected with something military
In contrast ascending is related to something spiritual and getting to a higher level of being.

The altar would fit thematically much better, but it is already used and the theme there fits perfect.

My suggestion: Rename Fortress to Sanctuary
Imho this would fit much better

Name aside, this is my fav building. Ascension points are awesome and the more the better.

It's true though, I didn't really think the fortress gave ascension points. 

But aside from that, ascension points are awesome (So don't take it away)

i think it fits if u consider a fortress is often governed by the size and strength of the structure, and ascension points allow you to increase\modify your personal strength and structure