From the official website:
Astral Towers, is a online turn-based card game. In Astral Towers players will have to summon creatures, buildings, make enchantments and cast spells in order to defeat opponent. Each player uses five magical elements during a duel - Fire, Ice, Nature, Death and Craft. In Astral Towers players will be able to play: Scenario game, Online duels, Duels against AI and Hot-seat.