Veteran Finnish game developer Antti Kallioinen passed away suddenly at the age of 42 on February 24, 2016. 

The announcement was made by today by Outland and Resogun developer, Housemarque - a studio Kallioinen called home at various points in his career. 

Kallioninen’s game development journey started in 1994, when he began working as a background graphics artist on one of the first internationally published games to come out of Finland, Elfmania.

The developer then joined Housemarque to help create PC title Alien Incident, before leaving to work abroad for over a decade. In his time overseas Kallioinen plied his trade at UK outfit Scavenger, and even co-founded his own studios: Church of Electronic Entertainment and Dreams Interactive. 

After eventually making his way back to Finland, Kallioinen spent six years at another one of his personal ventures, social game developer Chat Republic, before linking back up with Housemarque. 

At the time of his death Kallioinen was finalizing the company’s Dead Nation spiritual successor, Alienation, as the team's art lead.