Games like Sinoepoch
Games like Sinoepoch include Hearts of Iron IV, Crusader Kings II, Crusader Kings III, Europa Universalis IV, and Victoria II. We matched them by the tags players give Sinoepoch on Steam (Strategy, RPG, Grand Strategy, Alternate History, and Strategy RPG): closest matches first, and among equally close ones the better-known games.

Hearts of Iron IV
Shared: Strategy · Grand Strategy · Alternate History

Crusader Kings II
Shared: Strategy · Grand Strategy · RPG

Crusader Kings III
Shared: Strategy · Grand Strategy · RPG

Europa Universalis IV
Shared: Strategy · Grand Strategy · Alternate History

Victoria II
Shared: Strategy · Grand Strategy · Political Sim

Victoria 3
Shared: Strategy · Grand Strategy · Political Sim

Age of History II
Shared: Strategy · Grand Strategy · Political Sim

Imperator: Rome
Shared: Strategy · Grand Strategy · Political Sim

Battle Brothers
Shared: Strategy · RPG · Grand Strategy

Heroes' Vow: Three Kingdoms
Shared: Strategy · RPG · Grand Strategy

Crisis in the Kremlin
Shared: Strategy · Political Sim · Alternate History

Total War: WARHAMMER
Shared: Strategy · RPG · Grand Strategy

XCOM 2
Shared: Strategy · RPG · Character Customization

Baldur's Gate 3
Shared: RPG · Character Customization · Strategy

Europa Universalis V
Shared: Strategy · Grand Strategy · Historical

Sid Meier's Civilization VII
Shared: Strategy · Grand Strategy · Historical

Age of Wonders 4
Shared: Strategy · RPG · Grand Strategy

Pathfinder: Kingmaker - Enhanced Plus Edition
Shared: RPG · Strategy RPG · Character Customization

Mount & Blade II: Bannerlord
Shared: Strategy · RPG · Character Customization

觅长生
Shared: RPG · Strategy · Strategy RPG

MENACE
Shared: Strategy · RPG · Grand Strategy

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

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

Stellaris
Shared: Strategy · Grand Strategy · Real-Time with Pause