Stugan © 1978 Eriksson Borthers.
STUGAN means The cabin in Swedish.
The game was originally written in BASIC in 1977-78 on the Oden Mainframe computer at QZ, the computer science institute of the Stockholm University and Royal Institute of Technology, where the game was also available for free for users of the mainframe.
It was the first commercial game ever created in Sweden.
The game was later developed for DOS systems in 1985 and released commercially in 1986.