Darkwinds alternatives and competitors

Darkwinds is an on-line trading card game that runs on top of the Ethereum network. More specifically, all Darkwinds cards are non-fungible tokens or cryptocollectibles, a new standard for virtual objects where players have perpetual rights to sell, trade and give away their items, both within and outside of the game's ecosystem. This is possible thanks to the same technology that makes cryptocurrency possible, as Darkwinds cards exist on the same Blockchain used by all Ethereum tokens.