Games like Wasteland Messenger
Games like Wasteland Messenger include Slay the Spire, Slay the Spire 2, Balatro, Chrono Ark, and Monster Train. We matched them by the tags players give Wasteland Messenger on Steam (Card Battler, Roguelike Deckbuilder, Roguelite, Interactive Fiction, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

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

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

Balatro
Shared: Roguelike Deckbuilder · Strategy · Deckbuilding

Chrono Ark
Shared: Roguelike Deckbuilder · Strategy · Roguelite

Monster Train
Shared: Card Battler · Roguelite · Deckbuilding

Dicey Dungeons
Shared: Card Battler · Roguelike Deckbuilder · Roguelite

9 Kings
Shared: Strategy · Roguelike Deckbuilder · Roguelite

Inscryption
Shared: Card Battler · Deckbuilding · Roguelite

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

NEOVERSE
Shared: Card Battler · Roguelite · Female Protagonist

Dream of Corpse Lady
Shared: Card Battler · Strategy · Female Protagonist

Wildfrost
Shared: Card Battler · Roguelike Deckbuilder · Roguelite

StarVaders
Shared: Roguelike Deckbuilder · Roguelite · Deckbuilding

Griftlands
Shared: Card Battler · Roguelite · Deckbuilding

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

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

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

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

Alina of the Arena
Shared: Roguelike Deckbuilder · Roguelite · Strategy

Vault of the Void
Shared: Roguelike Deckbuilder · Card Battler · Strategy

Backpack Hero
Shared: Roguelike Deckbuilder · Inventory Management · Deckbuilding

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

Super Fantasy Kingdom
Shared: Strategy · Roguelite · Roguelike Deckbuilder

Black Book
Shared: Card Battler · Female Protagonist · Roguelite