Games like Be King
Games like Be King include Monster Train, Slay the Spire, Slay the Spire 2, Balatro, and 9 Kings. We matched them by the tags players give Be King on Steam (Card Battler, Turn-Based Tactics, Strategy, Trading Card Game, and Roguelite): closest matches first, and among equally close ones the better-known games.

Monster Train
Shared: Card Battler · Turn-Based Tactics · Roguelite

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

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

Balatro
Shared: Card Game · Strategy · Roguelike

9 Kings
Shared: Strategy · Card Game · RPG

Inscryption
Shared: Card Battler · Card Game · Strategy

Griftlands
Shared: Card Battler · Roguelite · Strategy

Mewgenics
Shared: Turn-Based Tactics · Roguelite · Turn-Based Strategy

Roguebook
Shared: Strategy · Card Game · Roguelite

Wildfrost
Shared: Card Battler · Turn-Based Tactics · Card Game

Cross Blitz
Shared: Card Battler · Roguelite · Strategy

Dream of Corpse Lady
Shared: Card Battler · Strategy · Turn-Based Tactics

LONESTAR
Shared: Turn-Based Tactics · Strategy · Card Battler

Super Fantasy Kingdom
Shared: Strategy · Roguelite · Roguelike

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

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

Stacklands
Shared: Card Battler · Card Game · Roguelite

As We Descend
Shared: Card Battler · Turn-Based Tactics · Card Game

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Tactics · Turn-Based Strategy · Card Game

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

StarVaders
Shared: Turn-Based Tactics · Roguelite · Card Game

Into the Breach
Shared: Strategy · Turn-Based Tactics · Turn-Based Strategy

Touhou: Lost Branch of Legend
Shared: Card Battler · Strategy · Turn-Based Tactics

Gordian Quest
Shared: Card Battler · Strategy · Card Game