Reign of Dragons (2012)
Date: November 15, 2012
Platform: iPhone / Android
Developer: Drecom Co., Ltd
Publisher: Drecom Co., Ltd
Genre: Card Game
Adaptation: Inspiration
Summary:
Reign of Dragons was an iOS/Android card battle-game set in a world where the Dragon King, about to be killed by Forces of Shadow, had torn a hole in the very fabric of Space and Time. This hole caused the world to continuously repeat in a Thirteen Day cycle.
Players gathered cards through questing and other means, and strengthened them in order to fight other players and try to become the next Dragon King.
Source: https://reignofdragons.fandom.com/wiki/Reign_of_Dragons_Wiki