Games like Cheat Koi-Koi
Games like Cheat Koi-Koi include Balatro, Slay the Spire, Slay the Spire 2, Monster Train, and Stacklands. We matched them by the tags players give Cheat Koi-Koi on Steam (Card Battler, Strategy, Roguelite, Tutorial, and Casual): closest matches first, and among equally close ones the better-known games.

Balatro
Shared: Strategy · Card Game · Roguelite

Slay the Spire
Shared: Card Battler · Strategy · Card Game

Slay the Spire 2
Shared: Strategy · Card Game · Card Battler

Monster Train
Shared: Card Battler · Roguelite · Card Game

Stacklands
Shared: Card Battler · Roguelite · Card Game

Inscryption
Shared: Card Battler · Card Game · Roguelite

Stray Path
Shared: Card Battler · Strategy · Roguelite

Wildfrost
Shared: Card Battler · Roguelite · Card Game

Griftlands
Shared: Card Battler · Roguelite · Strategy

Cross Blitz
Shared: Roguelite · Card Battler · Strategy

Ratropolis
Shared: Card Battler · Roguelite · Strategy

RACCOIN: Coin Pusher Roguelike
Shared: Strategy · Casual · Roguelite

9 Kings
Shared: Strategy · Card Game · Roguelite

Astrea: Six-Sided Oracles
Shared: Card Battler · Strategy · Card Game

Dungeons & Degenerate Gamblers
Shared: Strategy · Card Battler · Roguelite

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

DICEOMANCER
Shared: Strategy · Card Battler · Card Game

LONESTAR
Shared: Strategy · Card Battler · Roguelite

NEOVERSE
Shared: Card Battler · Roguelite · Strategy

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

Journey to the West
Shared: Card Battler · Roguelite · Strategy

Die in the Dungeon
Shared: Strategy · Card Battler · Card Game

Dream of Corpse Lady
Shared: Strategy · Card Battler · Card Game

Slots & Daggers
Shared: Strategy · Casual · Roguelite