Games like The Detective Reaper Invites
Games like The Detective Reaper Invites include Balatro, Inscryption, Dead Cells, Slay the Spire, and Loop Hero. We matched them by the tags players give The Detective Reaper Invites on Steam (Roguelite, Adventure, Puzzle, Card Game, and Deckbuilding): closest matches first, and among equally close ones the better-known games.

Balatro
Shared: Card Game · Deckbuilding · Roguelite

Inscryption
Shared: Card Game · Deckbuilding · Puzzle

Dead Cells
Shared: Adventure · Roguelite · 2D

Slay the Spire
Shared: Card Game · Deckbuilding · Roguelite

Loop Hero
Shared: Roguelite · Deckbuilding · Pixel Graphics

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

The Legend of Bum-Bo
Shared: Roguelite · Adventure · Puzzle

Vampire Survivors
Shared: Roguelite · Pixel Graphics · 2D

There Is No Game: Wrong Dimension
Shared: Puzzle · Adventure · Indie

Skul: The Hero Slayer
Shared: Roguelite · Indie · Pixel Graphics

Murders on the Yangtze River
Shared: Adventure · Puzzle · Indie

OneShot
Shared: Puzzle · Pixel Graphics · Adventure

Blue Prince
Shared: Puzzle · Roguelite · Adventure

UnderMine
Shared: Roguelite · Adventure · Pixel Graphics

The Rewinder
Shared: Adventure · Puzzle · Pixel Graphics

Luck be a Landlord
Shared: Roguelite · Deckbuilding · Procedural Generation

Griftlands
Shared: Roguelite · Deckbuilding · Card Game

Necroking
Shared: Roguelite · Card Game · Deckbuilding

Cross Blitz
Shared: Roguelite · Deckbuilding · Card Game

The Binding of Isaac: Rebirth
Shared: Indie · Pixel Graphics · Roguelike

Across the Obelisk
Shared: Adventure · Card Game · Deckbuilding

ScourgeBringer
Shared: Adventure · Roguelite · Indie

Wall World
Shared: Roguelite · Pixel Graphics · Procedural Generation

Chants of Sennaar
Shared: Adventure · Puzzle · Indie