Hey there, I wasn't expecting to release a patch this soon after the last one, but the difference this change makes is worth a Patch all its own. The AI has been fixed and optimized, improving the middle/late Game experience.
The late Game had an imperfection in the AI logic that is hard to explain; the simple answer is that to find its way the AI switches between methods of pathfinding but would get stuck on one of them. It would have trouble finding its way after running into a barrier. When there were a bunch of Creeps, turrets firing and things were crazy it wasn't easy to see- some Creeps might never have found their way to the HQ if left unchecked though.
As the Game progresses there are more Creeps per Wave, so more Creeps finding their way around the mountains. This would slow the Game down as you progressed up in Levels, making the mid-late Game slow during attacks- even on good computers. This got worse the farther you got in the Game. This has been massively improved, the Game performs significantly better.
On an unrelated note, I took a Job that will last the rest of this Week and part of next so I won't get as much done in that time. Game Design doesn't pay the Bills yet, but I'm hoping that will change sometime in the next Year or two. I will still be working on the Game- just not as much until this Job is finished. Fear not! I work for myself remodeling so I make my own hours and I'm not going anywhere. If anything, these jobs motivate me more, I want to get out of remodeling permanently and focus %100 of my time on Game Design. I thought you may want to know why I won't be around as much in the immediate future but that's enough about me.
And that's it for this one. There's no official changelog other than to say the AI has been drastically improved. I hope this improves your enjoyment of the Game! Toodle-oo!