Games like Musicmenia
Games like Musicmenia include Monster Train, Slay the Spire 2, Slay the Spire, Magic: The Gathering Arena, and Balatro. We matched them by the tags players give Musicmenia on Steam (Strategy, Card Game, Deckbuilding, Trading Card Game, and Card Battler): closest matches first, and among equally close ones the better-known games.

Monster Train
Shared: Card Game · Card Battler · Deckbuilding

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

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

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

Balatro
Shared: Card Game · Deckbuilding · Strategy

Inscryption
Shared: Card Game · Card Battler · Deckbuilding

9 Kings
Shared: Strategy · Card Game · Deckbuilding

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

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

Monster Train 2
Shared: Card Game · Deckbuilding · Strategy

Wildfrost
Shared: Card Game · Card Battler · Deckbuilding

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

Griftlands
Shared: Deckbuilding · Card Battler · Card Game

Dream of Corpse Lady
Shared: Strategy · Card Game · Card Battler

The Bazaar
Shared: Strategy · Deckbuilding · Card Game

Ratropolis
Shared: Deckbuilding · Strategy · Card Battler

StarVaders
Shared: Deckbuilding · Card Game · Roguelite

Dicey Dungeons
Shared: Deckbuilding · Card Battler · Strategy

Stacklands
Shared: Card Game · Strategy · Card Battler

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

天外武林 (Traveler of Wuxia)
Shared: Deckbuilding · Card Game · Strategy

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

As We Descend
Shared: Card Game · Card Battler · Deckbuilding

Touhou: Lost Branch of Legend
Shared: Strategy · Card Game · Card Battler