I purchased the pro version because I was really enjoying the free version and wanted to purchase new Heroes. Unfortunately the developers of the game have considerably slowed down the timeframe for the next wave to start in the pro version, evidently to make players have to purchase more coins because it will cost you coins if you dont want to sit and stare at your screen for a long time waiting for the next wave to start. Also, unlike the free version, after completing the 1st level, I was not awarded or allowed to carry over any gray gears, which pay for the weapons. So in order to play the next level, I received the message that I would have to buy gray gears because zero gears were carried over and there are none at the top of the screen. So I paid $2.00 for 1 set of 4 waves. I definitely regret purchasing the pro version, since the slow load times for the next wave takes the fun out of playing. So hopefully players will read this review and save themselves time and $2.00 because I sure would not have purchased a game with downgraded play like this pro version if I had been warned in advance.
Hal H about Steampunk Defense Pro, v1.6