The listing, Letter Quest: Grimm's Journey has ended.
Letter Quest is a turn-based RPG where players attack monsters by spelling words. But be careful since the monsters know how to fight back - they can create different letter tiles such as poison, plague, stone, whirlwind, duplicator, spike and flipped, steal your health, heal themselves, use critical attacks, and much, much more!
Don't worry - Grimm and Rose have a lot of tricks up their sleeves too, including crystal tiles that give special bonuses, upgradeable weapons, books that provide unique boosts, special items, upgrades, potions, and more!
More info: http://store.steampowered.com/app/328730/
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This game works on mac and linux too! Also includes steam trading cards
Good Luck!