Games like Numeromantia
Games like Numeromantia include Slay the Spire 2, Balatro, Slay the Spire, 9 Kings, and Nubby's Number Factory. We matched them by the tags players give Numeromantia on Steam (Strategy, Card Game, Roguelike, 2D, and Early Access): closest matches first, and among equally close ones the better-known games.

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

Balatro
Shared: Card Game · Roguelike · Strategy

Slay the Spire
Shared: Card Game · Roguelike · Strategy

9 Kings
Shared: Strategy · Roguelike · Card Game

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

Inscryption
Shared: Card Game · Deckbuilding · Roguelike

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

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

Library Of Ruina
Shared: Card Game · Strategy · Deckbuilding

Loop Hero
Shared: Roguelike · Deckbuilding · Card Game

Roguebook
Shared: Card Game · Strategy · Indie

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

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

FTL: Faster Than Light
Shared: Strategy · Roguelike · Indie

Ratropolis
Shared: 2D · Strategy · Card Game

Ballionaire
Shared: 2D · Roguelike · Strategy

Super Fantasy Kingdom
Shared: Strategy · Roguelike · Card Game

DICEOMANCER
Shared: Strategy · Card Game · Roguelike

Dicey Dungeons
Shared: Roguelike · Strategy · Deckbuilding

Monster Train 2
Shared: Card Game · Roguelike · Strategy

Vault of the Void
Shared: Strategy · Indie · Card Game

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

Breachway
Shared: Strategy · Card Game · Roguelike

Meme Mayhem
Shared: Card Game · Roguelike · Strategy