Games like Castles II: Siege & Conquest
Games like Castles II: Siege & Conquest include Total War: ROME II - Emperor Edition, Age of Empires II (Retired), Battle Brothers, Total War: THREE KINGDOMS, and Sid Meier’s Civilization® VI. We matched them by the tags players give Castles II: Siege & Conquest on Steam (Strategy, RPG, Historical, Tactical, and Real Time Tactics): closest matches first, and among equally close ones the better-known games.

Total War: ROME II - Emperor Edition
Shared: Strategy · Historical · Tactical

Age of Empires II (Retired)
Shared: Strategy · Historical · Tactical

Battle Brothers
Shared: Strategy · RPG · Tactical

Total War: THREE KINGDOMS
Shared: Strategy · Historical · Tactical

Sid Meier’s Civilization® VI
Shared: Strategy · Historical · Tactical

Shadow Tactics: Blades of the Shogun
Shared: Strategy · Tactical · Real Time Tactics

Sudden Strike 4
Shared: Strategy · Real Time Tactics · Tactical

Total War: ATTILA
Shared: Strategy · Historical · Tactical

XCOM 2
Shared: Strategy · Tactical · RPG

Company of Heroes 2
Shared: Strategy · Tactical · Historical

Manor Lords
Shared: Strategy · Historical · Building

Farthest Frontier
Shared: Strategy · Building · Historical

Crusader Kings III
Shared: Strategy · RPG · Historical

Total War: EMPIRE – Definitive Edition
Shared: Strategy · Historical · Tactical

Total War: NAPOLEON – Definitive Edition
Shared: Strategy · Historical · Tactical

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

Hearts of Iron IV
Shared: Strategy · Historical · Tactical

Total War: MEDIEVAL II – Definitive Edition
Shared: Strategy · Historical · Tactical

Crusader Kings II
Shared: Strategy · Historical · RPG

Desperados III
Shared: Strategy · Real Time Tactics · Tactical

Stronghold Crusader HD (2012)
Shared: Real Time Tactics · Strategy · Building

Against the Storm
Shared: Strategy · Building · Historical

Ancestors Legacy
Shared: Strategy · Historical · Tactical

Norland
Shared: Strategy · Building · Historical