Games like Card-en-Ciel
Games like Card-en-Ciel include Inscryption, Griftlands, Slay the Spire, 9 Kings, and Monster Train. We matched them by the tags players give Card-en-Ciel on Steam (RPG, Deckbuilding, Story Rich, Card Game, and Roguelite): closest matches first, and among equally close ones the better-known games.

Inscryption
Shared: Story Rich · Deckbuilding · Card Game

Griftlands
Shared: Deckbuilding · RPG · Roguelite

Slay the Spire
Shared: Card Game · Deckbuilding · Roguelike

9 Kings
Shared: RPG · Deckbuilding · Card Game

Monster Train
Shared: Deckbuilding · Card Game · Roguelite

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

Balatro
Shared: Card Game · Deckbuilding · Roguelike

Tainted Grail: Conquest
Shared: Deckbuilding · Card Game · Story Rich

Loop Hero
Shared: Deckbuilding · Roguelike · Roguelite

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

天外武林 (Traveler of Wuxia)
Shared: Deckbuilding · RPG · Roguelike

Chrono Ark
Shared: RPG · Anime · Roguelite

暖雪 Warm Snow
Shared: Roguelite · RPG · Roguelike

Super Fantasy Kingdom
Shared: RPG · Roguelike · Roguelite

Cross Blitz
Shared: Deckbuilding · RPG · Roguelite

Roguebook
Shared: RPG · Deckbuilding · Card Game

Library Of Ruina
Shared: Story Rich · Card Game · Deckbuilding

Morimens
Shared: Roguelite · Card Game · RPG

Dungeons & Degenerate Gamblers
Shared: Deckbuilding · Card Game · Roguelike

He is Coming
Shared: RPG · Roguelike · Roguelite

Touhou: Lost Branch of Legend
Shared: Deckbuilding · Anime · Card Game

Die in the Dungeon
Shared: Deckbuilding · Roguelike · Card Game

Peglin
Shared: Deckbuilding · Roguelite · Roguelike

NEOVERSE
Shared: Deckbuilding · Roguelite · Card Game