 Freedom Planet was conceived by American game designer and programmer Stephen DiDuro , who founded the independent developer GalaxyTrail to create the project . The soundtrack was composed by DiDuro in collaboration with user Shane " Blue Warrior " Ellis of <unk> and user Leila " <unk> " Wilson from Fur Affinity . Although it is an original intellectual property , Freedom Planet was first developed as a Sonic fangame : it contained rings , and Doctor Eggman was the villain . DiDuro decided that the Sonic affiliation would hold back the game and attempted without success to design his own characters . Afterward , he received permission from the Chinese artist Ziyo Ling — whom he had found on the art website DeviantArt — to use her characters Lilac , Carol , and Milla in his game . 
