Use WASD to move around, and the mouse to look around. Press numbers to look through the inventory, click once to place a block, hold the mouse to destroy a block, use turbowarp for the best experience: https://experiments.turbowarp.org/pointerlock/1195065780?fps=60 paste in browser, Ctrl C Ctrl V or on MAC: Command C Command V.
@3DGameCoder for everything man, I changed a couple of things for fun, let's see if u notice!