Maskeradmästerskapet (Fancy Dress Party) and Tårtkampen (Sprinkles) are fast paced activity games for children's parties, published by Egmont Kärnan.

For the internet community Okej.se, Ozma developed a reward system, and was also involved in bringing the community into line with the target groups’ needs.

Ozma performed user and target group testing for the PC game series Häst och Ponny, and for Julkalendern 2008, developed by Upside Studios.