Games like MafiaPunk: A Card Sim
Games like MafiaPunk: A Card Sim include Griftlands, Sultan's Game, Slay the Spire, Inscryption, and Mewgenics. We matched them by the tags players give MafiaPunk: A Card Sim on Steam (RPG, Simulation, Strategy, Card Game, and Puzzle): closest matches first, and among equally close ones the better-known games.

Griftlands
Shared: RPG · Card Battler · Card Game

Sultan's Game
Shared: RPG · Strategy · Simulation

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

Inscryption
Shared: Card Game · Card Battler · Puzzle

Mewgenics
Shared: RPG · Turn-Based Strategy · Simulation

9 Kings
Shared: RPG · Strategy · Card Game

Armello
Shared: Card Game · RPG · Strategy

Balatro
Shared: Card Game · Strategy · Indie

Super Fantasy Kingdom
Shared: RPG · Strategy · Card Game

Heroes of Might and Magic: Olden Era
Shared: RPG · Strategy · Simulation

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

Roguebook
Shared: RPG · Card Game · Strategy

Gordian Quest
Shared: RPG · Card Game · Strategy

Retirement Simulator
Shared: RPG · Simulation · Card Game

Monster Train
Shared: Card Game · Card Battler · Turn-Based Strategy

Mandate Of Heaven
Shared: RPG · Simulation · Strategy

Cyber Manhunt
Shared: RPG · Simulation · Puzzle

Into the Breach
Shared: Strategy · Turn-Based Strategy · Puzzle

Journey to the West
Shared: RPG · Card Battler · Card Game

Esports Godfather
Shared: Strategy · Simulation · Card Battler

Super Robot Wars 30
Shared: RPG · Strategy · Simulation

Heroes' Vow: Three Kingdoms
Shared: Simulation · RPG · Strategy

The Escapists
Shared: Strategy · Simulation · 2D

Stacklands
Shared: Card Game · Strategy · Card Battler