Some notes on Theft TD:
1. Cinematic description for the final boss says: Try to best me. Beat?
2. Tower upgrades seem to have an annoying delay when you want to research all levels at once. Dunno if it can be fixed, because you probably replace the upgrade ability.
3. Maybe the range upgrade cost is a bit high.
4. I suggest increasing the mana cost for your teleport ability on the tower.
5. Try the cast range thing I told you about for the aura