Games like Gladiator Guild Manager: Prologue
Games like Gladiator Guild Manager: Prologue include 鬼谷八荒 Tale of Immortal, Crusader Kings III, Gladiator Guild Manager, Game Dev Tycoon, and Mount & Blade II: Bannerlord. We matched them by the tags players give Gladiator Guild Manager: Prologue on Steam (Simulation, Auto Battler, Strategy, Management, and Fantasy): closest matches first, and among equally close ones the better-known games.

鬼谷八荒 Tale of Immortal
Shared: Simulation · Management · Singleplayer

Crusader Kings III
Shared: Strategy · Simulation · Management

Gladiator Guild Manager
Shared: Auto Battler · Strategy · Management

Game Dev Tycoon
Shared: Simulation · Management · Strategy

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

Idle Champions of the Forgotten Realms
Shared: Strategy · Free to Play · Fantasy

RimWorld
Shared: Strategy · Management · Simulation

This War of Mine
Shared: Strategy · Simulation · Singleplayer

Banished
Shared: Simulation · Strategy · Singleplayer

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Singleplayer

Graveyard Keeper
Shared: Simulation · Management · RPG

911 Operator
Shared: Simulation · Strategy · Management

觅长生
Shared: Strategy · Fantasy · RPG

Potion Craft: Alchemist Simulator
Shared: Simulation · Singleplayer · Management

Cities: Skylines
Shared: Simulation · Management · Strategy

Eslabong
Shared: Auto Battler · Strategy · Management

Tavern Master
Shared: Simulation · Management · Strategy

Bomber Crew
Shared: Simulation · Strategy · Management

Kenshi
Shared: Simulation · Strategy RPG · RPG

Lessaria: Fantasy Kingdom Sim
Shared: Strategy · Simulation · Management

Where Winds Meet
Shared: Free to Play · Singleplayer · Simulation

Two Point Hospital
Shared: Simulation · Management · Strategy

Mini Motorways
Shared: Simulation · Strategy · Management

Teamfight Manager
Shared: Simulation · Auto Battler · Management