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

Balatro
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

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

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

9 Kings
Shared: Strategy · Roguelike Deckbuilder · Card Game

Wildfrost
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

Dicey Dungeons
Shared: Roguelike Deckbuilder · Deckbuilding · Strategy

Die in the Dungeon
Shared: Strategy · Deckbuilding · Roguelike Deckbuilder

Monster Train
Shared: Deckbuilding · Card Game · Card Battler

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

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

RACCOIN: Coin Pusher Roguelike
Shared: Strategy · Roguelike Deckbuilder · Deckbuilding

Monster Train 2
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

Roguebook
Shared: Deckbuilding · Card Game · Indie

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

Inscryption
Shared: Card Game · Deckbuilding · Card Battler

Vault of the Void
Shared: Roguelike Deckbuilder · Deckbuilding · Indie

Super Fantasy Kingdom
Shared: Strategy · Roguelike · Roguelike Deckbuilder

As We Descend
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

Library Of Ruina
Shared: Strategy · Card Game · Deckbuilding

Breachway
Shared: Strategy · Roguelike Deckbuilder · Deckbuilding

DICEOMANCER
Shared: Strategy · Roguelike Deckbuilder · Card Game

Black Jacket
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

LONESTAR
Shared: Strategy · Roguelike Deckbuilder · Roguelike

Shogun Showdown
Shared: Roguelike Deckbuilder · Roguelike · Strategy