Explaied i the game.

Relics of the Fallen is a turn-based dungeon crawler card game with roguelike elements.Choose your hero and the dungeon you want to explore. Defeat monsters, collect items and relics throughout your journey. Plan your moves ahead to survive longer and to defeat the bosses.Experience a unique and addictive gameplay. Get better every game as you discover more cards with interesting mechanics.Also available on Google Play Store: https://play.google.com/store/apps/details?id=com.crescentyr.relicsofthefallen

For iOS:
Safari on iOS 8 and later supports WebGL 1.0, and on iOS 15 and later supports WebGL 2.0.

For Android：
Nearly all of them support WebGL