Games like Diplomacy, or Else!
Games like Diplomacy, or Else! include Age of History II, Crusader Kings II, Sid Meier’s Civilization® VI, Sid Meier's Civilization® V, and Mount & Blade II: Bannerlord. We matched them by the tags players give Diplomacy, or Else! on Steam (Strategy, Turn-Based Strategy, Political Sim, 2D, and Top-Down): closest matches first, and among equally close ones the better-known games.

Age of History II
Shared: Strategy · Turn-Based Strategy · Political Sim

Crusader Kings II
Shared: Strategy · Political Sim · Medieval

Sid Meier’s Civilization® VI
Shared: Strategy · Turn-Based Strategy · Multiplayer

Sid Meier's Civilization® V
Shared: Strategy · Turn-Based Strategy · Multiplayer

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

Total War: MEDIEVAL II – Definitive Edition
Shared: Strategy · Turn-Based Strategy · Medieval

Age of Conquest IV
Shared: Strategy · Turn-Based Strategy · Multiplayer

Age of Empires II (Retired)
Shared: Strategy · Medieval · Multiplayer

Democracy 3
Shared: Strategy · Political Sim · Indie

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

Plague Inc: Evolved
Shared: Strategy · Indie · Multiplayer

Bloons TD 6
Shared: Strategy · Multiplayer · Singleplayer

ShellShock Live
Shared: Strategy · 2D · Multiplayer

FTL: Faster Than Light
Shared: Strategy · Indie · Singleplayer

A Total War Saga: THRONES OF BRITANNIA
Shared: Strategy · Turn-Based Strategy · Medieval

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

Total War: ATTILA
Shared: Strategy · Turn-Based Strategy · Multiplayer

The Escapists 2
Shared: Strategy · Multiplayer · 2D

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

The Escapists
Shared: Strategy · 2D · Singleplayer

Turmoil
Shared: Strategy · Turn-Based Strategy · Multiplayer

Politics The Game
Shared: Strategy · Political Sim · Turn-Based Strategy

Total War: THREE KINGDOMS
Shared: Strategy · Turn-Based Strategy · Multiplayer

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