Games like Unsealed Pact
Games like Unsealed Pact include Balatro, Slay the Spire 2, Slay the Spire, 9 Kings, and Monster Train 2. We matched them by the tags players give Unsealed Pact on Steam (Roguelike Deckbuilder, Trading Card Game, Singleplayer, Difficult, and Choices Matter): closest matches first, and among equally close ones the better-known games.

Balatro
Shared: Roguelike Deckbuilder · Singleplayer · Card Game

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

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

9 Kings
Shared: Roguelike Deckbuilder · Strategy · Deckbuilding

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

Library Of Ruina
Shared: Difficult · Card Game · Deckbuilding

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

Darkest Dungeon®
Shared: Difficult · Roguelike · Turn-Based Combat

Monster Train
Shared: Deckbuilding · Card Game · Difficult

Wildfrost
Shared: Roguelike Deckbuilder · Difficult · Card Game

Breachway
Shared: Roguelike Deckbuilder · Deckbuilding · Card Game

RACCOIN: Coin Pusher Roguelike
Shared: Roguelike Deckbuilder · Singleplayer · Deckbuilding

Dungeons & Degenerate Gamblers
Shared: Roguelike Deckbuilder · Roguelike · Deckbuilding

Super Fantasy Kingdom
Shared: Roguelike Deckbuilder · Strategy · Roguelike

Vault of the Void
Shared: Roguelike Deckbuilder · Choices Matter · Deckbuilding

Meme Mayhem
Shared: Roguelike Deckbuilder · Singleplayer · Card Game

Decktamer
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

Poker Quest: Swords and Spades
Shared: Roguelike Deckbuilder · Card Game · Difficult

Dicey Dungeons
Shared: Roguelike Deckbuilder · Deckbuilding · Roguelike

Hand of Fate
Shared: Roguelike Deckbuilder · Deckbuilding · Singleplayer

Ratropolis
Shared: Deckbuilding · Singleplayer · 2D

Black Jacket
Shared: Roguelike Deckbuilder · Singleplayer · Card Game

Alina of the Arena
Shared: Roguelike Deckbuilder · Roguelike · Card Game

Roguebook
Shared: Singleplayer · Deckbuilding · Card Game