The free-to-download game for iOS and Android devices revolves around two knights from the kingdom of Grandshelt, a young girl and a crystal. You crawl through dungeons on the hunt for items and gil. Combat is turn-based in the old-school Final Fantasy style.
As a free-to-download game there are in-app purchases. Of note is the Ł2.99 "early bird bundle", which is aimed at beginners "who wish to grow their characters at a faster pace". You can also buy chests and crates of lapis.
Here's the launch trailer.