eWSOY is a developer of video games.
eWSOY has been active on the market since before 2001.
One of its first projects was game Muminki: Zima Muminków.
In publishing its games, eWSOY collaborates with Graffiti Entertainment. The developer's most recent work is Muminki zapraszają na jesienne przyjęcie. Production release occurred on 20 February 2009.