Independent Norwegian studio Filiokus today announced Talystro, a roguelite deckbuilder that challenges players to think differently about combat by turning mathematics into its core weapon. Inspired by genre standouts like Slay the Spire and Balatro, Talystro combines dice rolls, cards, and creative arithmetic, casting players as the unlikely Math Mouse standing against the evil Necrodicer and an army of corrupted numbers brought to life.