This is a really quirky game you made here. I like the concept of drilling for Blood Crystals on an alien world. Though the rest falls flat in terms of design. The feedback for the gameplay felt confusing as I was unsure whether or not I was mining a rock properly or if I was even attacking until I died. The most frustrating aspect was that the aiming controls felt clunky and I had to adjust myself multiple times just to mine a single crystal.
Not a bad game, but definitely could use some fine-tuning.