Sparticus - found a bug - I think it related to the slow tower and lots of creeps in one space - if you play the game 'corner creep bug' in my tournaments you can see it. Place a frost tower in the top left hand corner of the map and upgrade it twice. Send the first wave - you will see some jump to the top left and are stuck. For kicks you can make a volcano tower and fire it - they don't go anywhere and fly all over the place. Also - again when lots of creeps are in one place - sometimes you try to sell a volcano tower - the green sell bar spills all the way to the left of the screen - and it never sells. I will try and make a map to reproduce that

Hmm, I'll check this out now.

Thanks for reporting it :)

definately a bug... nice find :)

I "think" it's caused cause you have the creeps set to .2 speed and then try and slow them even more. I might have to set the minimum speed possible (even with frost towers) to .2

I should have this fixed for next update