Contrary to the claims on the store page, the Linux version of Kingdom Rush is not a 32 bit version. However, the MS Windows version is 32 bit which allows me to play the game using Wine.

The game has some potential for improvement. I think I will rate the game with 4 stars. *?

The levels have too many rounds. It can be very frustrating if you only just fail and have to start all over again.

I'm just wondering if newer versions of the game will work for me.

A few screenshots attached...

The first game was indeed the hardest, from what I remember. Maybe it's just me, though :)