Games like Fantasy Grounds - Referee's Briefing 4: Mercenary Forces
Games like Fantasy Grounds - Referee's Briefing 4: Mercenary Forces include For The King, For The King II, Divinity: Original Sin - Enhanced Edition, Baldur's Gate 3, and Wartales. We matched them by the tags players give Fantasy Grounds - Referee's Briefing 4: Mercenary Forces on Steam (RPG, Strategy, Software, Online Co-Op, and Tabletop): closest matches first, and among equally close ones the better-known games.

For The King
Shared: RPG · Online Co-Op · Strategy

For The King II
Shared: RPG · Strategy · Party-Based RPG

Divinity: Original Sin - Enhanced Edition
Shared: RPG · Turn-Based · Strategy

Baldur's Gate 3
Shared: RPG · Online Co-Op · Fantasy

Wartales
Shared: RPG · Party-Based RPG · Strategy

Don't Starve Together
Shared: Online Co-Op · Multiplayer · RPG

Divinity: Original Sin (Classic)
Shared: RPG · Strategy · Turn-Based

The Banner Saga
Shared: RPG · Strategy · Turn-Based

Bloons TD 6
Shared: Strategy · Online Co-Op · Multiplayer

Talisman: Digital Classic Edition
Shared: Strategy · RPG · Tabletop

Terraria
Shared: 2D · Multiplayer · Sandbox

Might & Magic® Heroes® VII
Shared: Strategy · RPG · Turn-Based

Mount & Blade II: Bannerlord
Shared: Strategy · RPG · Multiplayer

Heroes® of Might & Magic® III - HD Edition
Shared: Strategy · RPG · Multiplayer

The Escapists 2
Shared: Strategy · Online Co-Op · Multiplayer

ShellShock Live
Shared: Strategy · Multiplayer · Turn-Based

Demeo
Shared: RPG · Strategy · Tabletop

ENDLESS Legend™
Shared: Strategy · Turn-Based · RPG

Mount & Blade: Warband
Shared: RPG · Strategy · Multiplayer

Pit People®
Shared: Online Co-Op · Strategy · 2D

Solasta: Crown of the Magister
Shared: RPG · Fantasy · Strategy

Pathfinder: Kingmaker - Enhanced Plus Edition
Shared: RPG · Party-Based RPG · Fantasy

Might & Magic: Heroes VI
Shared: Strategy · RPG · Turn-Based

Baldur's Gate II: Enhanced Edition
Shared: RPG · Party-Based RPG · Fantasy