You're an adventurer stranded in the middle of nowhere with nothing but your clothes and your dagger. You have to survive by killing monsters to recieve materials, which then can be used to upgrade weapons, armor and bases. You can also build many things with these resources; houses, drills, quarries, sawmills, fishery, kitchen, you name it!
Just a test screenshot. This picture shows the player is on Fast mode due to the thick black fog, a sucessfully rendered rainbow cube, and a flickering torch, lighting up the moonlight.