Killjoy Games is an independent Russian developer.
Killjoy has attracted negative publicity after they plagiarized music, art, and other media in their game Air Control without permission. Game levels were also direct copies from flappy bird. Complaints pertaining to the state of the game at its release, the game performing poorly, negative reviews, and Steam user posts that were disapproving of the companies actions were censored or removed. Killjoy also lied about the games features and attempted to cover it up, despite their being user screenshots.