Games like SlayQueen: The Gatekeeper
Games like SlayQueen: The Gatekeeper include Slay the Spire, Slay the Spire 2, Yu-Gi-Oh! Master Duel, Griftlands, and Inscryption. We matched them by the tags players give SlayQueen: The Gatekeeper on Steam (Card Battler, Trading Card Game, Deckbuilding, Card Game, and Anime): closest matches first, and among equally close ones the better-known games.

Slay the Spire
Shared: Card Battler · Card Game · Deckbuilding

Slay the Spire 2
Shared: Deckbuilding · Card Game · Card Battler

Yu-Gi-Oh! Master Duel
Shared: Card Game · Trading Card Game · Card Battler

Griftlands
Shared: Card Battler · Deckbuilding · Roguelite

Inscryption
Shared: Card Battler · Card Game · Deckbuilding

Monster Train
Shared: Card Battler · Deckbuilding · Card Game

9 Kings
Shared: Card Game · Deckbuilding · RPG

Shadowverse: Worlds Beyond
Shared: Trading Card Game · Card Battler · Deckbuilding

Balatro
Shared: Card Game · Deckbuilding · Roguelite

Cross Blitz
Shared: Deckbuilding · Card Battler · Card Game

GWENT: The Witcher Card Game
Shared: Card Game · Deckbuilding · Trading Card Game

Yu-Gi-Oh! Legacy of the Duelist
Shared: Card Battler · Card Game · Deckbuilding

Infinity Wars: Animated Trading Card Game
Shared: Card Game · Deckbuilding · Trading Card Game

Stacklands
Shared: Card Game · Card Battler · Roguelite

Dicey Dungeons
Shared: Card Battler · Deckbuilding · Roguelite

Magic: The Gathering Arena
Shared: Trading Card Game · Card Game · Deckbuilding

Roguebook
Shared: Deckbuilding · Card Game · RPG

Super Fantasy Kingdom
Shared: RPG · Card Game · Deckbuilding

Animation Throwdown: The Quest for Cards
Shared: Card Battler · Trading Card Game · Card Game

Chrono Ark
Shared: Anime · RPG · Card Game

Ratropolis
Shared: Card Battler · Deckbuilding · Card Game

Library Of Ruina
Shared: Card Game · Deckbuilding · Strategy

Die in the Dungeon
Shared: Deckbuilding · Card Game · Card Battler

NEOVERSE
Shared: Card Battler · Deckbuilding · Card Game