Games like Mage Tower
Games like Mage Tower include Slay the Spire, Slay the Spire 2, Balatro, 9 Kings, and Monster Train. We matched them by the tags players give Mage Tower on Steam (Roguelike Deckbuilder, Card Battler, Card Game, Strategy, and Roguelike): closest matches first, and among equally close ones the better-known games.

Slay the Spire
Shared: Roguelike Deckbuilder · Card Battler · Card Game

Slay the Spire 2
Shared: Card Game · Roguelike · Roguelike Deckbuilder

Balatro
Shared: Roguelike Deckbuilder · Card Game · Roguelike

9 Kings
Shared: Strategy · Card Game · Roguelike Deckbuilder

Monster Train
Shared: Card Battler · Card Game · Roguelite

Super Fantasy Kingdom
Shared: Strategy · Roguelike · Card Game

Wildfrost
Shared: Roguelike Deckbuilder · Card Battler · Card Game

Dungeons & Degenerate Gamblers
Shared: Roguelike Deckbuilder · Card Game · Strategy

Die in the Dungeon
Shared: Strategy · Roguelike Deckbuilder · Roguelike

Dicey Dungeons
Shared: Roguelike Deckbuilder · Card Battler · Deckbuilding

Vault of the Void
Shared: Roguelike Deckbuilder · Card Battler · Strategy

Griftlands
Shared: Card Battler · Deckbuilding · Roguelite

Breachway
Shared: Strategy · Card Game · Roguelike Deckbuilder

Inscryption
Shared: Card Battler · Card Game · Deckbuilding

He is Coming
Shared: Strategy · Roguelike · Card Game

Ratropolis
Shared: Card Battler · Deckbuilding · Strategy

Astrea: Six-Sided Oracles
Shared: Roguelike Deckbuilder · Card Battler · Card Game

Roguebook
Shared: Card Game · Strategy · Deckbuilding

As We Descend
Shared: Roguelike Deckbuilder · Card Battler · Card Game

Monster Train 2
Shared: Roguelike Deckbuilder · Card Game · Roguelike

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Card Battler · Strategy · Roguelike

DICEOMANCER
Shared: Card Battler · Card Game · Roguelike Deckbuilder

Touhou: Lost Branch of Legend
Shared: Roguelike Deckbuilder · Card Battler · Strategy

Yao-Guai Hunter
Shared: Roguelike Deckbuilder · Card Game · Card Battler

