Gee thanks! I've been updating the game since the first jam release, and I will implement your suggestions. 

It's true that there are no core loops yet, I planned some upgrades and buffs with a normal currency and buy some skins and extras  with special currency, but unfortunately it didn't make it tho haha. The only engaging part is killing some enemies, I'll add something to make the player play even more. I'll also add some reason to make the player mine the minerals, like get ammos and more coins (normal currency). There are more contents on their way as well! 

by the way, some minerals have it's own score value, the rare it is the more you get! 

Thanks again, I really appreciate your complements and suggestions!

Thankyou! I was thinking that enemies can hurt each others just like in minecraft, to make it more fun. Everything's balanced because it's only two scenes, so I can handle it. Also I might adding more contents, more mechanics and stuffs, etc.

Thanks so much! I created this from scratch and surprisingly I was  able to submit the game in a fully playable state. I'm not consider this as polished, I might update this in the future and will release it to the other platforms such as Android, etc.

Thanks! It was a tough one. Somehow I managed to complete all of it including animations and sounds, except the postprocessing and lighting don't make it tho. I'll do updates and fixes then post it in the future.