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

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

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

Balatro
Shared: Roguelike Deckbuilder · Card Game · Roguelike

Monster Train
Shared: Card Battler · Card Game · Deckbuilding

9 Kings
Shared: Strategy · Roguelike Deckbuilder · Card Game

Wildfrost
Shared: Roguelike Deckbuilder · Card Battler · Difficult

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

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

Inscryption
Shared: Card Battler · Card Game · Deckbuilding

Dicey Dungeons
Shared: Roguelike Deckbuilder · Card Battler · Deckbuilding

Breachway
Shared: Roguelike Deckbuilder · Strategy · Card Game

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

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

Super Fantasy Kingdom
Shared: Strategy · Roguelike · Roguelike Deckbuilder

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

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

Decktamer
Shared: Roguelike Deckbuilder · Card Battler · Card Game

Library Of Ruina
Shared: Difficult · Card Game · Strategy

DICEOMANCER
Shared: Card Battler · Roguelike Deckbuilder · Card Game

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

Commander Quest
Shared: Roguelike Deckbuilder · Card Game · Strategy

Griftlands
Shared: Card Battler · Deckbuilding · Card Game

LONESTAR
Shared: Card Battler · Roguelike Deckbuilder · Strategy

Banners of Ruin
Shared: Roguelike Deckbuilder · Card Battler · Card Game