The Diggles is hands down one of my fvorite childhood games. It's fun, the little dwarves are cute and it has nice crafting tree, rideable hamsters, dragons and a ton of randomly generated things to discover. Generally it works very well, but I had some problems in ONE of my saves, more below. I started with the tutorial and there was no problem there. Everything worked exactly the way i remember. It was nice and enjoyable, but then I went to the first part of the campaign and oh boy was it a sh*tshow. First of all, one of my dwarves got eternally pregnant. The other one had 4 kids in the meantime, but she was still pregnant. I got her killed to see if the baby would pop out (SPOILER: it didn't). Other female dwarves had some problems and didn't become pregnant at all. During the tutorial I heard that border stones are supposed to remove the fog in distant caves, but for some reason my dwarves were all-seeing and could see all the nodes from the opposite corner of the map without them. I tried to invent new things, but at some point my dwarves were all like "Ok, screw this. There is no capitalism yet, so we have no incentive to improve an expand" and they just stopped inventing ANYTHING. One time they almost starved to death because they also stopped creating fried mushrooms and I had to re-pack my fireplace twice to make them recall that hey, without food you die, you know? Monsters from undiscovered caves had some sort of magical gps that was making them fixate on my tribe and run half of the globe just to hit one of them and die to a whole lot of dwarves chilling at their resting hub. There was so many things spawning underground that I barely had any spots to create my own caves due to a big amount of undiggable surface which made my entire map look like a weird spaghetti. When I created a new campaign save everything was working great, so if you notice these signs you can just start over, but I am not sure what will happen when you unlock another map yet.
