Games like Joey's Nightmare II
Games like Joey's Nightmare II include Slay the Spire, Balatro, Slay the Spire 2, Dicey Dungeons, and Monster Train. We matched them by the tags players give Joey's Nightmare II on Steam (Strategy, Roguelike Deckbuilder, Turn-Based Tactics, Deckbuilding, and Card Battler): closest matches first, and among equally close ones the better-known games.

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

Balatro
Shared: Roguelike Deckbuilder · Strategy · Deckbuilding

Slay the Spire 2
Shared: Strategy · Deckbuilding · Roguelike Deckbuilder

Dicey Dungeons
Shared: Roguelike Deckbuilder · Deckbuilding · Card Battler

Monster Train
Shared: Card Battler · Deckbuilding · Turn-Based Tactics

Wildfrost
Shared: Roguelike Deckbuilder · Card Battler · Turn-Based Tactics

DICEOMANCER
Shared: Strategy · Roguelike Deckbuilder · Card Battler

9 Kings
Shared: Strategy · Roguelike Deckbuilder · Deckbuilding

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

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

Dungeons & Degenerate Gamblers
Shared: Roguelike Deckbuilder · Strategy · Deckbuilding

StarVaders
Shared: Roguelike Deckbuilder · Turn-Based Tactics · Deckbuilding

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

Inscryption
Shared: Card Battler · Deckbuilding · Strategy

Monster Train 2
Shared: Roguelike Deckbuilder · Strategy · Deckbuilding

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

Roguebook
Shared: Strategy · Deckbuilding · Roguelite

Die in the Dungeon
Shared: Strategy · Deckbuilding · Roguelike Deckbuilder

Alina of the Arena
Shared: Roguelike Deckbuilder · Turn-Based Tactics · Strategy

Black Jacket
Shared: Roguelike Deckbuilder · Deckbuilding · Roguelite

LONESTAR
Shared: Strategy · Turn-Based Tactics · Roguelike Deckbuilder

Overdungeon
Shared: Strategy · Roguelike Deckbuilder · Card Battler

Vault of the Void
Shared: Roguelike Deckbuilder · Strategy · Deckbuilding

Ratropolis
Shared: Deckbuilding · Strategy · Card Battler