Games like Warmongers
Games like Warmongers include Magic: The Gathering Arena, Monster Train, GWENT: The Witcher Card Game, Armello, and Battle Brothers. We matched them by the tags players give Warmongers on Steam (Strategy, RPG, Card Game, Turn-Based Strategy, and Card Battler): closest matches first, and among equally close ones the better-known games.

Magic: The Gathering Arena
Shared: Strategy · Card Game · Trading Card Game

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

GWENT: The Witcher Card Game
Shared: Strategy · Card Game · RPG

Armello
Shared: Card Game · Turn-Based Strategy · Strategy

Battle Brothers
Shared: Strategy · RPG · Turn-Based Strategy

Heroes of Might and Magic: Olden Era
Shared: Strategy · RPG · Turn-Based Strategy

Gordian Quest
Shared: RPG · Card Game · Strategy

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Strategy · Turn-Based Tactics · Card Game

Total War: WARHAMMER II
Shared: Strategy · Turn-Based Strategy · Fantasy

9 Kings
Shared: Strategy · RPG · Card Game

The Last Spell
Shared: Strategy · RPG · Turn-Based Strategy

MENACE
Shared: Strategy · RPG · Turn-Based Strategy

Age of Wonders 4
Shared: Strategy · Turn-Based Strategy · RPG

Expeditions: Rome
Shared: Strategy · RPG · Turn-Based Strategy

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

Warhammer 40,000: Chaos Gate - Daemonhunters
Shared: Turn-Based Strategy · Strategy · Turn-Based Tactics

Total War: WARHAMMER
Shared: Strategy · RPG · Turn-Based Strategy

SpellForce: Conquest of Eo
Shared: Strategy · RPG · Turn-Based Strategy

Total War: WARHAMMER III
Shared: Strategy · Turn-Based Strategy · Dark Fantasy

Monster Train 2
Shared: Card Game · Strategy · Turn-Based Strategy

Shadowverse: Worlds Beyond
Shared: Card Battler · Trading Card Game · Strategy

XCOM 2
Shared: Strategy · RPG · Turn-Based Tactics

Jagged Alliance 3
Shared: Strategy · Turn-Based Strategy · RPG

Thea 2: The Shattering
Shared: Strategy · RPG · Turn-Based Strategy