Games like Heart sequence
Games like Heart sequence include Slay the Spire, Balatro, Slay the Spire 2, 9 Kings, and Backpack Hero. We matched them by the tags players give Heart sequence on Steam (Roguelike Deckbuilder, Replay Value, Turn-Based, Roguelike, and Strategy): closest matches first, and among equally close ones the better-known games.

Slay the Spire
Shared: Roguelike Deckbuilder · Roguelike · Turn-Based

Balatro
Shared: Roguelike Deckbuilder · Roguelike · Deckbuilding

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

9 Kings
Shared: Strategy · Roguelike · Roguelike Deckbuilder

Backpack Hero
Shared: Replay Value · Roguelike Deckbuilder · Turn-Based

Dicey Dungeons
Shared: Roguelike Deckbuilder · Roguelike · Deckbuilding

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

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

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

Griftlands
Shared: Turn-Based · Deckbuilding · Card Battler

Yao-Guai Hunter
Shared: Roguelike Deckbuilder · Replay Value · Roguelike

Astrea: Six-Sided Oracles
Shared: Roguelike Deckbuilder · Roguelike · Turn-Based

Super Fantasy Kingdom
Shared: Strategy · Roguelike · RPG

Shogun Showdown
Shared: Replay Value · Turn-Based · Roguelike

Peglin
Shared: Roguelike · Deckbuilding · Turn-Based

Stoneshard
Shared: Roguelike · RPG · Strategy

Roguebook
Shared: RPG · Deckbuilding · Strategy

Gordian Quest
Shared: Replay Value · RPG · Strategy

Wildfrost
Shared: Roguelike Deckbuilder · Card Battler · Roguelike

Breachway
Shared: Roguelike · Roguelike Deckbuilder · Strategy

Monster Train
Shared: Card Battler · Roguelike · Deckbuilding

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

LONESTAR
Shared: Roguelike · Roguelike Deckbuilder · Strategy

Indies' Lies
Shared: Roguelike Deckbuilder · Roguelike · Turn-Based