Hi Sren, to start the game, enter a name and password, then click "log in". Next, enter a world name and click "choose world". This is how the game saves your data. Once you've entered your name, password and world name, click "single player" to start the game. Entering the same information next time you play will allow you to resume playing with your current save. Once in the game, press F1 for guidance at any time. To view or customize the key bindings, press escape and choose options-controls-bindings.
Thanks,
Droog71