Games like Power Chord
Games like Power Chord include Slay the Spire 2, Slay the Spire, Balatro, Monster Train, and Die in the Dungeon. We matched them by the tags players give Power Chord on Steam (Roguelike Deckbuilder, Deckbuilding, Roguelite, Turn-Based Combat, and Card Game): closest matches first, and among equally close ones the better-known games.

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

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

Balatro
Shared: Roguelike Deckbuilder · Deckbuilding · Card Game

Monster Train
Shared: Roguelite · Deckbuilding · Card Game

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

9 Kings
Shared: Deckbuilding · Roguelike Deckbuilder · Card Game

Dicey Dungeons
Shared: Roguelike Deckbuilder · Deckbuilding · Roguelite

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

Dice & Fold
Shared: Roguelike Deckbuilder · Turn-Based Combat · Dungeon Crawler

Wildfrost
Shared: Roguelike Deckbuilder · Card Game · Roguelite

Hadean Tactics
Shared: Roguelike Deckbuilder · Deckbuilding · Card Game

Inscryption
Shared: Deckbuilding · Card Game · Card Battler

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

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

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

Super Fantasy Kingdom
Shared: Roguelite · Roguelike · Deckbuilding

He is Coming
Shared: Roguelite · Roguelike · Deckbuilding

StarVaders
Shared: Roguelike Deckbuilder · Deckbuilding · Roguelite

Breachway
Shared: Deckbuilding · Roguelike Deckbuilder · Card Game

DICEOMANCER
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

Griftlands
Shared: Deckbuilding · Roguelite · Card Battler

HELLCARD
Shared: Roguelite · Deckbuilding · Roguelike

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

LONESTAR
Shared: Roguelike Deckbuilder · Roguelike · Turn-Based Combat