Games like Star Realms - High Alert: First Strike
Games like Star Realms - High Alert: First Strike include Magic: The Gathering Arena, The Bazaar, Slay the Spire, Slay the Spire 2, and Balatro. We matched them by the tags players give Star Realms - High Alert: First Strike on Steam (Strategy, Deckbuilding, Card Battler, Card Game, and Board Game): closest matches first, and among equally close ones the better-known games.

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

The Bazaar
Shared: Strategy · Deckbuilding · Card Battler

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

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

Balatro
Shared: Card Game · Deckbuilding · Strategy

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

Inscryption
Shared: Card Battler · Deckbuilding · Card Game

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

Ascension: Deckbuilding Game
Shared: Deckbuilding · Card Battler · Board Game

Monster Train
Shared: Card Battler · Deckbuilding · Card Game

ENDLESS Space™ 2
Shared: Strategy · Sci-fi · Space

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

Shadowverse: Worlds Beyond
Shared: Card Battler · Deckbuilding · Strategy

Sid Meier's Civilization®: Beyond Earth™
Shared: Strategy · Sci-fi · Turn-Based Strategy

Library Of Ruina
Shared: Strategy · Card Game · Deckbuilding

Dune: Imperium
Shared: Strategy · Deckbuilding · Board Game

BattleTech
Shared: Strategy · Sci-fi · Turn-Based Strategy

XCOM: Enemy Unknown
Shared: Strategy · Turn-Based Strategy · Sci-fi

NEOVERSE
Shared: Deckbuilding · Card Battler · Card Game

Cobalt Core
Shared: Strategy · Card Game · Sci-fi

Stacklands
Shared: Card Game · Card Battler · Strategy

STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Sci-fi · Space

Sid Meier’s Civilization® VI
Shared: Strategy · Turn-Based Strategy · Tactical

Griftlands
Shared: Card Battler · Deckbuilding · Strategy