Games like Vortex
Games like Vortex include Slay the Spire 2, Inscryption, Slay the Spire, Balatro, and Monster Train. We matched them by the tags players give Vortex on Steam (Strategy, Card Game, Puzzle, Card Battler, and Roguelite): closest matches first, and among equally close ones the better-known games.

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

Inscryption
Shared: Card Game · Card Battler · Deckbuilding

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

Balatro
Shared: Card Game · Strategy · Deckbuilding

Monster Train
Shared: Card Game · Card Battler · Roguelite

9 Kings
Shared: Strategy · Card Game · Deckbuilding

Stacklands
Shared: Card Game · Strategy · Card Battler

Griftlands
Shared: Card Battler · Roguelite · Deckbuilding

Library Of Ruina
Shared: Card Game · Strategy · Deckbuilding

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

Ratropolis
Shared: Strategy · Card Battler · Deckbuilding

Roguebook
Shared: Card Game · Strategy · Deckbuilding

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

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

Dicey Dungeons
Shared: Card Battler · Roguelite · Deckbuilding

Morimens
Shared: Card Battler · Roguelite · Card Game

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

Super Fantasy Kingdom
Shared: Strategy · Card Game · Roguelite

Wildfrost
Shared: Card Game · Card Battler · Roguelite

The Bazaar
Shared: Strategy · Card Game · Card Battler

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

DICEOMANCER
Shared: Strategy · Card Game · Card Battler

Cross Blitz
Shared: Card Game · Roguelite · Strategy

Breachway
Shared: Strategy · Card Game · Deckbuilding