Games like Knights and Goblins
Games like Knights and Goblins include Slay the Spire, Balatro, Slay the Spire 2, Ratropolis, and Inscryption. We matched them by the tags players give Knights and Goblins on Steam (Casual, Card Game, Card Battler, Roguelite, and Trading Card Game): closest matches first, and among equally close ones the better-known games.

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

Balatro
Shared: Card Game · Roguelite · Casual

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

Ratropolis
Shared: Card Battler · 2D · Roguelite

Inscryption
Shared: Card Game · Card Battler · Roguelite

Stacklands
Shared: Card Game · Roguelite · Card Battler

Animation Throwdown: The Quest for Cards
Shared: Card Game · Card Battler · Trading Card Game

Eternal Card Game
Shared: Card Game · Card Battler · Casual

Yu-Gi-Oh! Legacy of the Duelist
Shared: Card Game · Card Battler · Trading Card Game

Griftlands
Shared: Card Battler · Roguelite · Card Game

Monster Train
Shared: Card Battler · Card Game · Roguelite

Magic: The Gathering Arena
Shared: Card Game · Trading Card Game · Fantasy

Yu-Gi-Oh! Master Duel
Shared: Card Game · Trading Card Game · Card Battler

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

Dicey Dungeons
Shared: Card Battler · Roguelite · Card Game

Shadowverse: Worlds Beyond
Shared: Card Battler · Trading Card Game · Card Game

GWENT: The Witcher Card Game
Shared: Card Game · Trading Card Game · Fantasy

Wildfrost
Shared: Card Battler · Card Game · Roguelite

Vampire Survivors
Shared: Roguelite · 2D · Casual

Banana
Shared: Casual · 2D · Family Friendly

None Shall Intrude
Shared: Card Game · Card Battler · Roguelite

Ballionaire
Shared: Casual · 2D · Roguelite

Infinity Wars: Animated Trading Card Game
Shared: Card Game · Card Battler · Trading Card Game

Rana Card
Shared: Casual · Card Game · Roguelite