Games like Radiis
Games like Radiis include Sid Meier's Civilization® V, Sid Meier’s Civilization® VI, XCOM: Enemy Unknown, Armello, and ENDLESS Legend™. We matched them by the tags players give Radiis on Steam (Turn-Based, Turn-Based Strategy, Board Game, Experimental, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

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

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

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

Armello
Shared: Board Game · Turn-Based Strategy · Turn-Based

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

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

Blood Bowl 2: Legendary Edition (Classic)
Shared: Board Game · Turn-Based · Strategy

Space Hulk (Classic)
Shared: Turn-Based · Board Game · Turn-Based Strategy

Into the Breach
Shared: Turn-Based Strategy · Strategy · Turn-Based

Dorfromantik
Shared: Turn-Based Strategy · Board Game · Strategy

Gremlins, Inc.
Shared: Board Game · Turn-Based · Turn-Based Strategy

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

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

Through the Ages
Shared: Board Game · Strategy · Turn-Based Strategy

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

Total War: ROME II - Emperor Edition
Shared: Turn-Based Strategy · Strategy · Turn-Based

Mordheim: City of the Damned
Shared: Turn-Based · Strategy · Turn-Based Strategy

Warhammer 40,000: Mechanicus
Shared: Turn-Based · Strategy · Turn-Based Strategy

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

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

Hero's Hour
Shared: Turn-Based · Turn-Based Strategy · Strategy

Scythe: Digital Edition
Shared: Turn-Based · Board Game · Strategy

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

BattleTech
Shared: Turn-Based · Turn-Based Strategy · Strategy