星樹の機神プラネットルーラー 星樹の機神 Machina_of_the_Planet_Tree_-Planet_Ruler- Machina_of_the_Planet_Tree
Japanese title: 星樹の機神 -プラネットルーラー- (せいじゅのきしん プラネットルーラー)
English title: Machina of the Planet Tree -Planet Ruler-
A 2013 doujin game by Denneko Yuugi. The character design was done by Shishigomi (Haruno Shuu). The English version was released on Steam in 2015.