I have been able to work out how to interact with the game mostly, but am at a point where I would really like to save and go to bed! LOL

I gather that you an only save at certain points throughout the game ie. where the telephones are? But I cant find a quit option? How do I quit?

Is there a manual, or a basic tutorial on how to play the game?

I have the same question

I've found one way to quit the game cleanly by going back to the main menu.

At any time, you can hit Escape to access the inventory, the map and some other things.

Instead of going right to the inventory, press the left key (left arrow or A).
That should center the screen on the lamp.
Then hit E to go to the main menu (where it's possible to quit).

I didn't see this explained anywhere so it's easy to miss.

Thanks elkine, I will reinstall it and give it another go, I got rid of it because it was annoying me!