Eternal is a free-to-play online collectible card video game developed and published by Dire Wolf Digital. Eternal is currently available for iPhone and iPad iOS devices on the App Store, PCs using Steam, and for Android devices using Google Play. It is also available on Xbox, and Nintendo Switch. The game features cross-platform play, allowing players to use any of the supported platforms to compete with each other. The game is a turn-based card game between two opponents that use constructed decks with various amounts of cards. Players use their power cards to cast spells, use attachments or summon units to attack the opponent, with the goal of reducing the opponent's health to zero. Winning matches and completing quests will earn in-game gold, rewards in the form of new cards or packs, and other in-game prizes. Players can then buy card packs or buy access to card drafting modes by using gold or microtransactions to collect cards for their decks. The game features several modes of play, including ranked matches and single-player campaigns. New content for the game involves the addition of new card sets and gameplay, taking the form of either expansion packs or campaigns that reward the player with collectible cards upon completion.