Games like Inkborn
Games like Inkborn include Slay the Spire, Balatro, Slay the Spire 2, Dicey Dungeons, and 9 Kings. We matched them by the tags players give Inkborn on Steam (Roguelike Deckbuilder, Card Game, Roguelike, Strategy, and Deckbuilding): closest matches first, and among equally close ones the better-known games.

Slay the Spire
Shared: Roguelike Deckbuilder · Card Game · Roguelike

Balatro
Shared: Card Game · Roguelike Deckbuilder · Roguelike

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

Dicey Dungeons
Shared: Roguelike Deckbuilder · Roguelike · Deckbuilding

9 Kings
Shared: Strategy · Roguelike · Card Game

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

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

Wildfrost
Shared: Roguelike Deckbuilder · Card Game · Card Battler

Yao-Guai Hunter
Shared: Roguelike Deckbuilder · Card Game · Roguelike

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

Super Fantasy Kingdom
Shared: Strategy · Roguelike · Card Game

Roguebook
Shared: Card Game · Deckbuilding · Strategy

Griftlands
Shared: Card Battler · Deckbuilding · Card Game

Astrea: Six-Sided Oracles
Shared: Roguelike Deckbuilder · Card Game · Roguelike

Monster Train
Shared: Card Game · Card Battler · Deckbuilding

Breachway
Shared: Card Game · Roguelike · Strategy

Backpack Hero
Shared: Roguelike Deckbuilder · Deckbuilding · Roguelike

DICEOMANCER
Shared: Card Game · Roguelike Deckbuilder · Strategy

Inscryption
Shared: Card Game · Card Battler · Deckbuilding

Across the Obelisk
Shared: Roguelike Deckbuilder · Card Game · Roguelike

Guild of Dungeoneering Ultimate Edition
Shared: Roguelike Deckbuilder · Roguelike · Card Game

Overdungeon
Shared: Roguelike Deckbuilder · Strategy · Card Game

Black Jacket
Shared: Roguelike Deckbuilder · Card Game · Roguelike

My Card Is Better Than Your Card!
Shared: Card Game · Roguelike · Roguelike Deckbuilder