Games like Shattered Heaven
Games like Shattered Heaven include Slay the Spire, Griftlands, Balatro, Slay the Spire 2, and Inscryption. We matched them by the tags players give Shattered Heaven on Steam (Card Battler, Strategy, Roguelite, RPG, and Turn-Based): closest matches first, and among equally close ones the better-known games.

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

Griftlands
Shared: Card Battler · Roguelite · RPG

Balatro
Shared: Card Game · Strategy · Roguelike

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

Inscryption
Shared: Card Battler · Card Game · Roguelite

9 Kings
Shared: Strategy · RPG · Card Game

Monster Train
Shared: Card Battler · Roguelite · Card Game

Black Book
Shared: Card Battler · Turn-Based · Card Game

Dicey Dungeons
Shared: Card Battler · Roguelite · Strategy

Tainted Grail: Conquest
Shared: Card Game · Turn-Based · Deckbuilding

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

Super Fantasy Kingdom
Shared: Strategy · RPG · Roguelite

Roguebook
Shared: RPG · Strategy · Card Game

Darkest Dungeon®
Shared: RPG · Roguelike · Dungeon Crawler

Morimens
Shared: Card Battler · Roguelite · Turn-Based

HELLCARD
Shared: Card Battler · Roguelite · RPG

Loop Hero
Shared: Roguelite · Roguelike · Deckbuilding

Die in the Dungeon
Shared: Strategy · Card Battler · Roguelike

Dungeons & Degenerate Gamblers
Shared: Strategy · Card Battler · Card Game

He is Coming
Shared: Strategy · RPG · Roguelite

Peglin
Shared: Roguelite · Strategy · Turn-Based

Journey to the West
Shared: Card Battler · Roguelite · RPG

Stoneshard
Shared: RPG · Strategy · Roguelike

Ratropolis
Shared: Card Battler · Roguelite · Strategy