Marvinter is a free Android game developed by the University of Skovde under the Adventure game category. The game is only available in Swedish, and it follows the story of hustomten Jenny, who is working as a practical intern at Gråspiks pensionat. The game is designed for children and young adults and is based on the popular Swedish Christmas radio show, Barnradions.

In the game, Jenny has to manage the chaos that has erupted at the pensionat, where various creatures such as trolls, vätte, Bäckahäst, and a giant with toothache have arrived for an important meeting. Jenny must help all the creatures while preventing them from attacking each other and taking over the pensionat. The game is split into 24 chapters, with a new chapter opening every day until Christmas Eve.

Marvinter is an interactive game where players have to solve puzzles, talk to creatures, and explore different environments. The game can be played by listening only, making it suitable for visually impaired users. However, it is necessary to have Android 4.1 or later versions to play the game. There are no in-app purchases in Marvinter, and TalkBack may need to be disabled to play the game.