Games like Overdrawn
Games like Overdrawn include Slay the Spire, Balatro, Slay the Spire 2, Monster Train 2, and 9 Kings. We matched them by the tags players give Overdrawn on Steam (Roguelike Deckbuilder, Strategy, Card Game, Card Battler, and Turn-Based Strategy): closest matches first, and among equally close ones the better-known games.

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

Balatro
Shared: Roguelike Deckbuilder · Card Game · Strategy

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

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

9 Kings
Shared: Strategy · Card Game · Roguelike Deckbuilder

Monster Train
Shared: Card Battler · Card Game · Roguelike

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

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

Wildfrost
Shared: Roguelike Deckbuilder · Card Battler · Card Game

Dicey Dungeons
Shared: Roguelike Deckbuilder · Card Battler · Strategy

Ratropolis
Shared: Card Battler · Strategy · 2D

Decktamer
Shared: Roguelike Deckbuilder · Card Game · Card Battler

DICEOMANCER
Shared: Strategy · Card Game · Roguelike Deckbuilder

Inscryption
Shared: Card Game · Card Battler · Deckbuilding

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

Super Fantasy Kingdom
Shared: Strategy · Roguelike · Card Game

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

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

My Card Is Better Than Your Card!
Shared: Card Game · Strategy · Roguelike Deckbuilder

Breachway
Shared: Strategy · Card Game · Roguelike Deckbuilder

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

Across the Obelisk
Shared: Roguelike Deckbuilder · Turn-Based Strategy · Card Game

Magic: The Gathering Arena
Shared: Strategy · Card Game · Turn-Based Strategy

Three Kingdoms: The Blood Moon
Shared: Roguelike Deckbuilder · Card Game · Card Battler