The purpose of games are to entertain, but advergames (acronym for advertisement and games) advertises for causes or products and entertains. In Danish reklame-spil.
Key theories or ways to evaluate advergames
Other concepts
https://nordjyske.dk/nyheder/spil-en-reklame/e76d26d7-163d-42c6-90a8-a35922a9b042
5. Airforce test (Danish only)
6. Guldkorn-expressen (Danish)