Games like Gemblades
Games like Gemblades include Slay the Spire, Balatro, Slay the Spire 2, 9 Kings, and Hand of Fate 2. We matched them by the tags players give Gemblades on Steam (Strategy, Card Game, Deckbuilding, Roguelite, and Roguelike Deckbuilder): closest matches first, and among equally close ones the better-known games.

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

Balatro
Shared: Card Game · Deckbuilding · Strategy

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

9 Kings
Shared: Strategy · Card Game · Deckbuilding

Hand of Fate 2
Shared: Card Game · Deckbuilding · Roguelike Deckbuilder

月圆之夜 (Night of Full Moon)
Shared: Card Game · Strategy · Deckbuilding

Monster Train 2
Shared: Card Game · Roguelike Deckbuilder · Deckbuilding

Dicey Dungeons
Shared: Deckbuilding · Roguelike Deckbuilder · Roguelite

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

DICEOMANCER
Shared: Strategy · Card Game · Roguelike Deckbuilder

Super Fantasy Kingdom
Shared: Strategy · Roguelite · Card Game

Ratropolis
Shared: Deckbuilding · Strategy · Roguelite

Meme Mayhem
Shared: Card Game · Roguelike Deckbuilder · Strategy

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

Monster Train
Shared: Card Game · Roguelite · Deckbuilding

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

Stacklands
Shared: Card Game · Roguelite · Strategy

Hand of Fate
Shared: Deckbuilding · Card Game · Roguelike Deckbuilder

Wildfrost
Shared: Card Game · Roguelike Deckbuilder · Roguelite

Chrono Ark
Shared: Strategy · Roguelike Deckbuilder · Card Game

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

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

Roguebook
Shared: Card Game · Deckbuilding · Strategy

He is Coming
Shared: Strategy · Roguelite · Card Game