Basics

Windows :
Left Mouse Click and drag to move a Character.
Space bar to Jump.
Right Mouse Click and drag to orbit.
Scroll to zoom in and out.
Press "v" and left mouse together to pan.

Touchscreen (iOS or Android):

             Drag on the arrow pad to control a character.
             
            Click to jump. 
Drag on the other part to orbit.
Spread and narrow two fingers to zoom in and out.
Put two fingers together and move to pan.

Building Mode :
House -> Build House to build a house.
​Click to install an item.
Press long to destroy an item.