I have added the demo back to the store, The demo does not have Survival mode, and level cap is set to Level 15.

Updates for the game:

Ai changes:
Removal of AI XP caps
Hard XP changed from 10% to 25%
Insane XP changed 25% to 50%
Ai armor no longer changes depending on the difficulty. Note: This was causing issues at higher levels where AI armor was increasing faster than players damage in hard and insane.

Player Changes:
Character stat points per level increase from 6 per level to 12(at level 61)

Upgrade station changes:

Increase Upgrade items values:
Frost steal: upgrade level 1-10 increase stats by 5 per level
Frost steal: upgrade level 16-50 increase stats by 10 per level
Frost steal: upgrade level 51+ increase stats by 15 per level

Maze Items:
Upgrade level 1-20 increase by 1
Upgrade level 21-60 increase by 5
Upgrade level 61+ increase by 10