Nice game! It felt pretty polished and well made, it was fun to play.
Making randomness affect the player's movement and actions can often be frustrating in games, but here it did make sense because it makes you have to think of new strategies each turn, which was fun. Although that was fun, it did sometimes feel a little unfair when you get a low roll like a 1 when the enemy keeps getting higher rolls. Sometimes I accidentally blocked myself with my own gnomes which makes you think more about strategically using your moves. The order of turns changed for every level which sometimes made it a bit more confusing, it might be better to have that be consistent?
The story mode felt a bit too easy at first, although that might just be me getting lucky with rolls? I did like how you gradually introduced larger maps and more players/enemies though. The AI was pretty good!
The graphics, sound and UI were also very well done which made the game feel very polished. The random facts were also a nice touch. It's nice that you added a custom mode, adds a lot of replayability. It would've been nice to see how many hearts each gnome had above or under the gnome itself, instead of having to look down at the bottom of the UI (could also be a problem with color blindness).
Overall a very solid game though, good job!