RPG Bonds of the Skies is a free adventure role-playing game for Android developed by KEMCO. The game features an expansive world where players can join a range of characters, each with their own distinct personalities, as they travel with the gods. The story revolves around Eil, the main character, who enters into a pact with the Air Grimoa, Nogard, to save his town that is attacked by a demon and engulfed in flames. Eil and Nogard set off to look for the demon who cast the town into a sea of flames, and to find other Grimoas in order to put a stop to the demon's violence.

The game offers a wide range of achievements, including quests and collecting items. Players can customize their characters by setting their skills and can use more powerful skills by synchronizing the characters with the Grimoas. The tutorial function makes play easy even for beginners, and there are many purchasable items that can be used to support the quest. Please note that the free version of the game includes in-game ads, which can also be removed through in-app purchase if desired.