Mage Tower: A Tower Defense Card Game is a Windows game designed by Brett Brimmer. It is a digital adaptation of the physical card game that was released inThe game is a strategy game that requires the player to draft a deck of cards and battle an AI opponent. The player must defeat the enemy player each time, and the opponent gains more health. The game features tower defense-inspired battles, where players fight off hordes of monsters.

The game features over 120 draftable cards, allowing for a deep well of card interactions. It has two modes: "Random Deck" and "Draft Mode." The cards are complex, and players can cast powerful spells to clear their monster boards and find other devious ways of attacking the opponent. However, the game has low resolution sprites and primitive retro sound effects, which is expected for a 2013 game. Players fight the same AI opponent over and over, but both players will draft vastly different decks each time, and players will be forced to adapt as the enemy gets more difficult.