Almost certainly an easy answer to this question but I cant figure out to save during a game. I have tried searching for an icon and pressing numerous keyboard keys hoping for a save 'hotkey'. Somebody please help this absolute wally!

The menu is in the top left, but hides itself until the mouse is over the top.

From memory, I think you can also hit CTRL+S and CTRL+L to quicksave and quickload the game. It uses a separate slot to all the ones from the menu.

For anyone stumbling upon this, It's ALT+S and ALT+L.