The below taken from the post found at:
The program defaults to re-loading the last save you played. If you’re running
it for the first time, then it doesn’t do anything. Bring down the console with
~ and type:
game new 1
You can replace the 1 with any number you like. That’s the seed number used to
create the world. Different numbers will lead to different worlds.
Looks like it also defaults to wireframe on, textures off, shaders off. That’s
dumb. Sorry. In the console:
That should put you in a good place. Also use:
If you’re a mouse-inverter. Use
To turn flying on and off. The WASD keys move you around. Right-click enters and
Missing textures are represented with a checkerboard pattern.