Card Hunter
Card Hunter is a f2p Dungeons and Dragons style card-game where your party of three adventurers fight a variety of monsters, ne-er'do'wells, and the like while collecting various loot. The card game aspect of it comes in that every peice of gear you have adds to that party member's deck. Every Round characters take turns playing their cards untill both the play and the computer run GM (Played by a nervous nerdy lad named Gary or his overbearing brother Melvin, in what can be considered the 'real' plot of the game) decide to pass their turn, starting a new round (where more cards are drawn). This continues untill either everyone is dead or specific objectives have been met. Every mission grants you more loot, which can either be equipped, or after reaching Level 7 on your account, dumped into the item store as vendor trash to be excahnged for gear you think you need.
All of this is done in a delighful art style reminiscent of those cheapo sets you'd use in budget board games, with little cardboard figurines on disk bases on a cardboard scenario map. Much of the pay (Gold is the ingame currency, while Pizza Slices are the realmoney tickets) aspect of the game comes in here, as cosmetic figurines (think dota skins) can be bought for cash, as are item packs of random gear. That said since every SP and MP victory grant you a chest of loot, paying for item packs seems ill advised anyway.
There is also a multiplayer aspect of it, where your party of 3 faces off against other players party of 3 as well. Unlike the Singleplayer campaign, there is no leveling, as all characters are using their lvl 18 stats as a baseline to keep things fair. The only thing that matters is your gear, wits, and deck building skills. The standard ranked play is available, where you take your selected party of guys and gear, as well as semi regular (every few hours) tournaments with special rules, some might force exact decks, others might have you chose items one at a time from a group of 3, others might have your standard group but weird win conditions, etc etc. These usually cost 50 gold to enter, but the prizes are worth it if you do well enough, up to being able to win tournament exclusive figurines.
Anyway I've rambled on enough, so I'll leave you with this thread. Cheers.