I like the use of doing abilities like swiping down for lighting and double clicking for the other one.

burning slimes was fun but the game feels empty

Nice cute game!

Did you make all the art and music by yourself?

I agree with AronGameDeveloper maybe the fire is a bit OP, would be nice to have some more "strategy" maybe chose when to use an element or the other and some animation of the little mage?

Overall nice one!

Cool Castle defense game!

• Innovation – The controls are really cool, I like how fire is hold, ice is double tap, and lighting is swipe down!
• Fun – It was simple, but fun!  I wish there was more enemy types from the start.
• Graphics – Very simple, the attack effects are really nice.  Like the ice effect and lightning.
• Audio – definitely needs some sound effects to help it feel better.
• Polish – It is a really cool idea, you should polish it up so it feels more professional.  Better art + sound effects + hordes of enemies instead of just 1 by 1 would make it much better. 

Great job completing a full and fun game loop!  Please check out my game if you like Metroidvanias or platformers :D

Very nice start to a tower defence game, I thought the music was very nice and calming. The mechanics of swiping the fire are well executed, 

I would like the enemies' colliders to be a bit bigger, as the moment I have to drag along their health bars to damage them. 

Also, the fire seems to be too strong, I was able to hold off the enemies very easily by swiping near their entrance and consistently upgrading my magic power. Once I started this tactic, there were never more than 1 enemy on the screen, quickly leading to a bit of boredom. 

I would suggest maybe having the fire be a more basic attack that only does a little damage, and the main amounts of damage come from another source, maybe heavy spells with a cooldown or troops to be sent to meet the enemies.

The art and sound are great, it just needs some more polish and progress to really find the fun :D