You create a character choosing the race, class and stats, then get a starting deck based on that. Then you fight through multiple battles and events, getting new cards that can be equipment, items, spells, rituals, companions, mounts and even a home base.
The game has thousands of cards and many play modes that can be very challenging, the fun is trying different class/race combos and builds based on the cards you find, like a vampire death knight that sacrifices HP to use special powers, a Nephilim mystic focused on holy armor and light-based spells, a demonic necromancer that raise slain foes as undead minions and then sacrifices them to summon demons, a blade dancer that do blade combos that does a lot of damage but leave her vulnereable, and so on.
It's a roguelike, so you only have one life, but you earn tokens as you play, that can be used to unlock new races & classes, advanced cards for them and even revive a fallen character. Fun stuff, and the dev is just one dude that has been doing a lot of work to keep it bug free and add more content.
