Thanks for sharing your game. I think this game is fairly cute, I like the crab names, I feel like there are a lot of improved to be had.
Namely the game seems to chug even an i9 computer so it has room to be optimized a lot. I think if the enemies didn't look like cubes, I would care more about what I was attacking. Game needs music and some kind of stringent objectives, I got to encounter 5 before I quit playing because there wasn't anything that feed the addiction to keep playing, maybe the encounters need something more interesting going on. The way to move the crabs felt kind of weird, I was expect more league or age of empires styled movement but it had a more cumbersome control scheme that I didn't enjoy as much - it felt like I was taking a lot of needless steps to move.
Great work so far, keep it up :)