Well pretty nice game.
I like the idea with the spells: You can collect them and use them when ever you need it.
First time i see something like this.
But it definitively need a global upgrade-system:
- Poison (tower + trap) : longer duration and/or more damage
- fire (tower + trap): more damage / chance to ignite enemy
- spike (tower + trap): damage / chance to cause bleeding
- more income: higher chance to find coins / spells
- goblins: they collected all the treasure and they will try to get it back after it got stolen.
Each upgrade-point will add another goblin (up to 5). Moving fast to the lost treasure,
being slow when carrying it. Enemies will take the treasure when they meet an goblin
at the path.
Upgrade-points: either with exp and leveling up or by giving stars if a level is finished without
loosing a treasure / it's even untouched.
Something like this would make the game way more interesting.