Games like Through the stars
Games like Through the stars include Slay the Spire 2, Slay the Spire, Balatro, Monster Train, and Wildfrost. We matched them by the tags players give Through the stars on Steam (Roguelike Deckbuilder, Card Game, Tactical, Card Battler, and Turn-Based Strategy): closest matches first, and among equally close ones the better-known games.

Slay the Spire 2
Shared: Card Game · Roguelike Deckbuilder · Deckbuilding

Slay the Spire
Shared: Roguelike Deckbuilder · Card Game · Card Battler

Balatro
Shared: Card Game · Roguelike Deckbuilder · Deckbuilding

Monster Train
Shared: Card Game · Card Battler · Turn-Based Strategy

Wildfrost
Shared: Roguelike Deckbuilder · Card Game · Card Battler

Across the Obelisk
Shared: Tactical · Roguelike Deckbuilder · Card Game

As We Descend
Shared: Roguelike Deckbuilder · Card Game · Card Battler

9 Kings
Shared: Card Game · Roguelike Deckbuilder · Strategy

Monster Train 2
Shared: Roguelike Deckbuilder · Card Game · Turn-Based Strategy

Cobalt Core
Shared: Roguelike Deckbuilder · Card Game · Turn-Based Strategy

Dicey Dungeons
Shared: Roguelike Deckbuilder · Card Battler · Deckbuilding

LONESTAR
Shared: Roguelike Deckbuilder · Card Battler · Strategy

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

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Strategy · Card Game · Deckbuilding

StarVaders
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

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

Inscryption
Shared: Card Game · Card Battler · Deckbuilding

Circadian Dice
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

Fights in Tight Spaces
Shared: Roguelike Deckbuilder · Strategy · Turn-Based Combat

Roguebook
Shared: Card Game · Deckbuilding · Strategy

Touhou: Lost Branch of Legend
Shared: Roguelike Deckbuilder · Card Battler · Card Game

Astrea: Six-Sided Oracles
Shared: Roguelike Deckbuilder · Card Game · Card Battler

Dice & Fold
Shared: Roguelike Deckbuilder · Card Battler · Turn-Based Combat

DICEOMANCER
Shared: Card Game · Roguelike Deckbuilder · Card Battler