WASD ― move
Shift ― sprint
Control ― crouch
Space ― jump
Space ― fly mode
In the fly mode
Space ― up,
Q ― down
Esc ― main menu
~ (tilde) ― helper menu with a bunch of different options inside. Right now it's the only place where you can get more raw materials for your inventory.
F2 - show/hide playback control panel.
I ― show/hide inventory. It's not a fully functional inventory yet, but at least it shows what objects you have. Use
down cursor keys to select the object.
Alt ― camera lock. While this key is pressed, the camera stands still and the mouse controls the cursor on the screen.
1 ― no active tool, empty hands.
2 ― build tool. This is a multifunctional tool for positioning, orienting and connecting the objects.
3 ― slice tool. It's for cutting the objects into pieces. You can slice any single object any way you like.
4 ― pull tool. Useful when you want something to rotate or fall.
5 ― draw tool. It's for drawing lines on the objects. Useful for snapping.
6 ― connect tool. This tool is used for connecting the objects with different fasteners, and also for removing the fasteners.
7 ― measure tool. Ruler and protractor tools for measuring distances and angles.
0 ― sweep tool. Useful for removing many small objects with a single click.
E ― if you're looking at some object, this key opens its context menu. Alternatively you can just click it with
F ― pick up and carry the object.
B ― throws a ball to test physics.
The primary mouse button for almost all the actions related to construction is
RMB is mostly used for cancelling the previous actions.
MMB is used for changing object pivots.