Games like Fool's Gambit
Games like Fool's Gambit include Inscryption, Balatro, Slay the Spire, Slay the Spire 2, and Vampire Crawlers: The Turbo Wildcard from Vampire Survivors. We matched them by the tags players give Fool's Gambit on Steam (Card Game, Roguelike, Strategy, Dark, and Deckbuilding): closest matches first, and among equally close ones the better-known games.

Inscryption
Shared: Card Game · Card Battler · Deckbuilding

Balatro
Shared: Card Game · Roguelike · Deckbuilding

Slay the Spire
Shared: Card Game · Roguelike · Deckbuilding

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

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

Buckshot Roulette
Shared: Dark · Strategy · Horror

DICEOMANCER
Shared: Card Game · Strategy · Roguelike

Monster Train
Shared: Card Game · Roguelike · Card Battler

Library Of Ruina
Shared: Card Game · Strategy · Deckbuilding

9 Kings
Shared: Strategy · Roguelike · Card Game

Monster Train 2
Shared: Card Game · Roguelike · Deckbuilding

Dicey Dungeons
Shared: Roguelike · Deckbuilding · Card Battler

CloverPit
Shared: Roguelike · Strategy · Horror

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

Menace from the Deep
Shared: Roguelike · Deckbuilding · Card Game

Wildfrost
Shared: Card Game · Card Battler · Roguelike

Roguebook
Shared: Card Game · Deckbuilding · Strategy

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

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

Magic: The Gathering Arena
Shared: Card Game · Strategy · Deckbuilding

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

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

Demonic Mahjong
Shared: Card Game · Strategy · Roguelike

Nubby's Number Factory
Shared: Roguelike · Strategy · Deckbuilding