Games like Mytho Duel
Games like Mytho Duel include Balatro, Magic: The Gathering Arena, Across the Obelisk, Slay the Spire, and Slay the Spire 2. We matched them by the tags players give Mytho Duel on Steam (Casual, Strategy, Card Game, Turn-Based Strategy, and Tabletop): closest matches first, and among equally close ones the better-known games.

Balatro
Shared: Card Game · Strategy · Casual

Magic: The Gathering Arena
Shared: Strategy · Card Game · Turn-Based Strategy

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

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

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

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

UNO
Shared: Card Game · Casual · Tabletop

Wingspan
Shared: Card Game · Strategy · Casual

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

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

Stacklands
Shared: Card Game · Strategy · Card Battler

DICEOMANCER
Shared: Strategy · Card Game · Card Battler

Library Of Ruina
Shared: Card Game · Strategy · Indie

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

Inscryption
Shared: Card Game · Card Battler · Strategy

Just Go
Shared: Casual · Strategy · Turn-Based Strategy

Demonic Mahjong
Shared: Strategy · Card Game · Casual

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

The Bazaar
Shared: Strategy · Card Game · Card Battler

Gordian Quest
Shared: Card Game · Strategy · Card Battler

Overdungeon
Shared: Strategy · Casual · Indie

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

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Strategy · Card Battler · Card Game

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