Gwent is card game very unique. The strategy is not only based on the dekbuilding but also on how you're able to spread your cards in different rounds: you draw a limited number of cards during a game and you want to win 2 rounds (out of 3). Going all in can be risky. Letting the opponent win a round can also be risky. There's a fine balance to find. Artworks are also beautiful, one of the best looking card game on the market. And can be played purely F2P: in one year I managed to get a complete collection and I'm now just waiting for future expansions.