Games like Fair21: Blackjack
Games like Fair21: Blackjack include Balatro, GWENT: The Witcher Card Game, Slots & Daggers, Magic: The Gathering Arena, and Slay the Spire. We matched them by the tags players give Fair21: Blackjack on Steam (Free to Play, Card Game, Casual, Gambling, and Strategy): closest matches first, and among equally close ones the better-known games.

Balatro
Shared: Card Game · Strategy · Pixel Graphics

GWENT: The Witcher Card Game
Shared: Free to Play · Card Game · Strategy

Slots & Daggers
Shared: Casual · Strategy · Gambling

Magic: The Gathering Arena
Shared: Card Game · Free to Play · Strategy

Slay the Spire
Shared: Card Game · Strategy · Turn-Based

The Four Kings Casino and Slots
Shared: Free to Play · Card Game · Gambling

UNO
Shared: Card Game · Casual · Tabletop

Shadowverse: Worlds Beyond
Shared: Free to Play · Card Game · Strategy

Wingspan
Shared: Card Game · Strategy · Casual

Gremlins, Inc.
Shared: Card Game · Strategy · Tabletop

Idle Champions of the Forgotten Realms
Shared: Free to Play · Strategy · Casual

Where Winds Meet
Shared: Free to Play · Singleplayer · Casual

Talisman: Digital Classic Edition
Shared: Strategy · Tabletop · Card Game

Rento Fortune: Online Dice Board Game (大富翁)
Shared: Casual · Strategy · Card Game

100% Orange Juice
Shared: Card Game · Strategy · Casual

Mini Motorways
Shared: Casual · Strategy · Indie

Vampire Survivors
Shared: Pixel Graphics · Casual · Indie

DAVE THE DIVER
Shared: Casual · Pixel Graphics · Singleplayer

Papers, Please
Shared: Pixel Graphics · Indie · Singleplayer

Ultimate Custom Night
Shared: Free to Play · Strategy · Singleplayer

Simmiland
Shared: Card Game · Casual · Pixel Graphics

Poker Night at the Inventory
Shared: Card Game · Casual · Gambling

Game Dev Tycoon
Shared: Casual · Strategy · Indie

Ballionaire
Shared: Casual · Strategy · Singleplayer