Games like Project RedTeam: Contract Offensive
Games like Project RedTeam: Contract Offensive include Balatro, Slay the Spire, Slay the Spire 2, Monster Train, and Wildfrost. We matched them by the tags players give Project RedTeam: Contract Offensive on Steam (Roguelike Deckbuilder, Deckbuilding, Hacking, Card Game, and Turn-Based Strategy): closest matches first, and among equally close ones the better-known games.

Balatro
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

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

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

Monster Train
Shared: Deckbuilding · Card Game · Roguelite

Wildfrost
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

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

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

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

StarVaders
Shared: Roguelike Deckbuilder · Deckbuilding · Card Game

Luck be a Landlord
Shared: Roguelike Deckbuilder · Deckbuilding · Roguelite

Cobalt Core
Shared: Roguelike Deckbuilder · Card Game · Turn-Based Strategy

Alina of the Arena
Shared: Roguelike Deckbuilder · Card Game · Roguelike

Loop Hero
Shared: Deckbuilding · Roguelike · Roguelite

Dicey Dungeons
Shared: Roguelike Deckbuilder · Deckbuilding · Roguelite

9 Kings
Shared: Deckbuilding · Roguelike Deckbuilder · Card Game

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

Black Jacket
Shared: Roguelike Deckbuilder · Card Game · Deckbuilding

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

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

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

Inscryption
Shared: Deckbuilding · Card Game · Roguelike

Warriors of the Nile 2
Shared: Card Game · Turn-Based Strategy · Deckbuilding

Trials of Fire
Shared: Roguelike Deckbuilder · Roguelite · Tactical RPG

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