Since the Steam version is deprecated, PC users can run the Android mod via:
, it is important to note that Konami officially retired the game and shut down its servers on September 30, 2020. KONAMI GROUP CORPORATION Yu-gi-oh Duel Generation Mod Unlock All Cards -UPD-
How they work (technical summary)
While the "Unlock All Cards" mod is a great way to preserve the game's history, keep the following in mind: Since the Steam version is deprecated, PC users