Didn't see a thread for this. I apologize if I'm blind.
https://www.playgwent.com/en/Free to play across three platforms. Open Beta just had a patch, so if you buy cardpacks ('kegs') you get full refunds if you decide to mill the cards you got.
Does anyone play? It's a pretty innovative and enjoyable cardgame. The factions play out very differently as well, with the addition of several possible leaders per faction, this leads to a lot of deck diversity.
I'm running a Monster Fog deck with Dagon as leader:

Use Woodland Spirit, 2x Impenetrable Fog and Dagon himself to spawn Fog to bring out the Foglets.
Use the Nekker Warriors to put more Foglets into the deck. This allows for bigger and bigger swings each time you spawn Fog.
Crones for even more swing.
Harpies are just a good allround bronze card, and work extremely well with Bekker's Twisted Mirror.
Renew and Ge'els to make sure I can play Woodland Spirit twice each game.
Caranthir and Skellige Storm for extra weather fuckery.
It runs really well. Haven't lost with it yet in this version.
Before I ran a Dagon Frost deck with the Ice Hounds and Frost Giants, but it didn't function nearly as well as this.