Sixteenth Pre-Release, OK!!!
In Singleplayer:
WASD to move
Space to jump
R to respawn at the spawn point.
Enter to set a new spawn point.
G to spawn human
F to toggle fog distance
Escape to release mouse and open game menu
1-9 or scrollwheel to change building block type
Left mouse button to add a block
Right mouse button to remove a block
Middle mouse button to copy block type
In Multiplayer:
T to chat
(But you can open the chat in singleplayer, I'll be fix it!)