Love how this game is coming along. The only thing that bothers me is how the slimes don't rest their positions. Having to move them back after ever invasion kind of kills the point of them for me. I like putting the slimes on the other side of traps to keep the ranged girl standing in my traps, but then I have to move them back after wards which can be annoying since they tend to be under my other traps. Making me have to remake my set up.
For the expedition system, I love the idea of it. It could be a great way to earn some cool upgrades for the dungeon or unlock traps/recruit other/better monsters for your dungeon. Not being able to move your camera really sucks though. There are a lot of clipping problems and it can be really hard to see where anything is unless you hug the bottom of the map. Also, I couldn't find any sort of end for the expedition. I got in, collected all the coins, and killed everything, but couldn't find a way to end it. Past that, love the update. Can't wait for the next one.