Cool game! I think it's an interesting concept and it has a lot of potential if well developed. A few things i would have liked were a better indicator of how much remaining time there was in the mining process and maybe less time mining overall and more time spent exploring and finding new stuff! Beyond the time remaining i would also add some sort of sound effect to the mining to better give the player a feel of how they are doing! Keep making games! (P.S. i'm being pedantic here but the game's page says RMB instead of LMB which left me a little confused)