Games like Pirates Outlaws 2: Heritage
Games like Pirates Outlaws 2: Heritage include Slay the Spire, Balatro, Slay the Spire 2, Monster Train, and Across the Obelisk. We matched them by the tags players give Pirates Outlaws 2: Heritage on Steam (Roguelike Deckbuilder, Card Game, Pirates, Card Battler, and Turn-Based Strategy): closest matches first, and among equally close ones the better-known games.

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

Balatro
Shared: Card Game · Roguelike Deckbuilder · Roguelike

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

Monster Train
Shared: Card Game · Card Battler · Turn-Based Strategy

Across the Obelisk
Shared: Roguelike Deckbuilder · Card Game · Turn-Based Strategy

Monster Train 2
Shared: Roguelike Deckbuilder · Card Game · Turn-Based Strategy

Wildfrost
Shared: Roguelike Deckbuilder · Card Game · Card Battler

9 Kings
Shared: Card Game · Strategy · Roguelike Deckbuilder

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

Dicey Dungeons
Shared: Roguelike Deckbuilder · Card Battler · Card Game

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

DICEOMANCER
Shared: Card Game · Roguelike Deckbuilder · Card Battler

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

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

Inscryption
Shared: Card Game · Card Battler · Deckbuilding

StarVaders
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

RACCOIN: Coin Pusher Roguelike
Shared: Roguelike Deckbuilder · Strategy · Roguelike

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

Black Jacket
Shared: Roguelike Deckbuilder · Card Game · Roguelike

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

Pirates Outlaws
Shared: Roguelike Deckbuilder · Card Game · Pirates

Roguebook
Shared: Card Game · Strategy · Deckbuilding

Gordian Quest
Shared: Card Game · Card Battler · Strategy

LONESTAR
Shared: Roguelike Deckbuilder · Card Battler · Strategy