Games like Endless Space 2 - Supremacy
Games like Endless Space 2 - Supremacy include Sid Meier's Civilization® V, Sid Meier’s Civilization® VI, ENDLESS Legend™, HUMANKIND™, and Sid Meier's Civilization®: Beyond Earth™. We matched them by the tags players give Endless Space 2 - Supremacy on Steam (Strategy, 4X, Turn-Based, Turn-Based Strategy, and Downloadable Content): closest matches first, and among equally close ones the better-known games.

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

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

ENDLESS Legend™
Shared: Strategy · 4X · Turn-Based

HUMANKIND™
Shared: Strategy · 4X · Turn-Based Strategy

Sid Meier's Civilization®: Beyond Earth™
Shared: Strategy · Turn-Based Strategy · 4X

ENDLESS Space™ 2
Shared: Strategy · 4X · Turn-Based Strategy

Sid Meier's Civilization® III Complete
Shared: Strategy · Turn-Based · Turn-Based Strategy

Warhammer 40,000: Gladius - Relics of War
Shared: Strategy · 4X · Turn-Based Strategy

Age of Wonders III
Shared: Strategy · Turn-Based Strategy · 4X

Civilization IV: Beyond the Sword
Shared: Strategy · 4X · Turn-Based Strategy

Age of Wonders: Planetfall
Shared: Strategy · 4X · Turn-Based Strategy

The Battle of Polytopia
Shared: Strategy · Turn-Based · Turn-Based Strategy

Heroes of Might and Magic: Olden Era
Shared: Strategy · Turn-Based Strategy · 4X

ENDLESS Space™ - Definitive Edition
Shared: Strategy · 4X · Turn-Based Strategy

Sid Meier's Civilization® IV
Shared: Strategy · Turn-Based · 4X

Master of Orion
Shared: Strategy · 4X · Turn-Based

Battle Brothers
Shared: Strategy · Turn-Based Strategy · Turn-Based

Millennia
Shared: Strategy · 4X · Turn-Based Strategy

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

XCOM: Enemy Unknown
Shared: Strategy · Turn-Based Strategy · Turn-Based

Age of Wonders 4
Shared: Strategy · 4X · Turn-Based Strategy

Old World
Shared: Strategy · 4X · Turn-Based Strategy

XCOM®: Chimera Squad
Shared: Strategy · Turn-Based · Turn-Based Strategy

MENACE
Shared: Strategy · Turn-Based Strategy · Turn-Based