Interesting little RTS game. I'm not very familiar with this genre, so I don't know how helpful my feedback will be. I'll try to include questions and observations I had while playing.
From what I gather, you place runes on the grid on the center right. The game cycles through the grid and when it highlights one of the runes, you can then use said rune. Some runes let you summon a miner while others let you use attacks against the monsters, which can be seen on the radar on the bottom right. Am I understanding that all correctly?
It is random which runes you get from mining? I wanted to get more attack runes but wasn't sure how.
I ended up buying a castle which unlocked a new row of tiles on my grid. I think that ended up being a bad idea because it took longer for me to be able to use the runes I need, especially when monsters were attacking.
I kept dying pretty early on. Is there a way to speed up the loop cycle on the rune grid?
Overall, this seems like an interesting game. I don't have much frame of reference since I haven't really played many RTS games, so I don't know how it compares to similar games. The tutorial helped a little but it took me a few plays before I felt I grasped the mechanics. My first playthrough, I hadn't even noticed the monsters appearing on the radar as red dots. I was just mining along until I suddenly died, lol.
I think I struggled with defeating enemies as I didn't have enough attack runes and the loop cycle took too long. Not sure if I was missing the intended strategies or if the game needs to be rebalanced in some way.
Nice job on your submission! Hope my feedback is helpful!