It's single-player, mostly, so not competing with Hearthstone at all. Basically it's a stealth-based card game. The demo version is probably the best demo ever; you can, theoretically play the whole game for free, and can keep playing the missions for as long as you want. They only make you pay to unlock your 'loot' but your loot doesn't matter at the start anyway. The game's only $3 anyway so I'd say worth it (a single hearthstone pack lol), especially if you're looking for a good offline game for plane flights or when you're not sure you'll have enough time to finish a hearthstone match.
It's single-player, mostly, so not competing with Hearthstone at all. Basically it's a stealth-based card game. The demo version is probably the best demo ever; you can, theoretically play the whole game for free, and can keep playing the missions for as long as you want. They only make you pay to unlock your 'loot' but your loot doesn't matter at the start anyway. The game's only $3 anyway so I'd say worth it (a single hearthstone pack lol), especially if you're looking for a good offline game for plane flights or when you're not sure you'll have enough time to finish a hearthstone match.
http://www.card-thief.com/