Mouse: click the world to capture the view · left click breaks a block · right click places the selected block · scroll wheel cycles the hotbar · Esc frees the mouse.
Keyboard: W A S D walk · Space jump · arrows turn the view (works even without mouse capture) · 1–9 pick a hotbar slot · N clears the save.
Touch: left pad moves you · drag anywhere else looks around · jump, break and place pads sit on the right.