Guide not written yet. We add one after we've played the game. For now, this is the developer's own description.
About Merge Dragons
Merge Dragons invites you to creatively combine dragons, unlocking new species as they transform and grow. Engage in endless discovery by tactically merging creatures, expanding your dragon guide, and racing them for rewards. With simplistic controls and a whimsical world, this game offers delightful merging madness!
Description supplied by the developer via GamePix.