The game pace was pretty slow. It took ALOT of waves for things to pick up. It could take easily an hour or more to make it though an entire area, and only about 5 min of that was actually engaging or interesting. This was my main complaint, as it just got boring. One problem to that end was launching the next wave early didn't give any advantage, so you almost always better off letting the nodes heal up than moving on to the next wave. At the very least if I shave 10s off the current wave, I should get 10s worth of 'repair' for the nodes. It'd also be nice if I could start a new wave before the last one was finished, as the early waves were so tediously easy.
I'm not sure if you've played the most recent version, but I made a significant number of changes that should have addressed most of these issues.
I just made the next wave button spammable; in response to your post
The areas get
much harder. The first area is just an extended tutorial where you can piss around seeing what all the different things do.
There is also a hard mode that you can enable from the menu, that makes the enemies spawn in much higher numbers.
Most of the buildings weren't repairable, which kinda sucked, they really needed some sort of repair mechanic.
There is a spanner that you can buy to repair buildings. Page 2 of the weapons.
The tower options seem kinda limited for a tower defense game, and the action gameplay I found kinda boring (or whatever you would call the part where I chase them down with my axe/gun/whatever). There didn't really feel like there was a sweet spot between the two.
People really need to get past the first area. There are 6 in the game, the first is the only easy one. I have this problem where if I make it too hard it will put people off, but if I make it too easy people get bored.
There aren't as many towers as there would be in a tower defence game, but most tower defence games don't have all the other shit.
Anyway, thanks for playing it and writing a response, all information is valuable