Games like Warhammer 40,000: Battlesector
Games like Warhammer 40,000: Battlesector include STAR WARS Zero Company™, XCOM 2, XCOM®: Chimera Squad, XCOM: Enemy Unknown, and Jagged Alliance 3. We matched them by the tags players give Warhammer 40,000: Battlesector on Steam (Strategy, Turn-Based Tactics, Turn-Based Strategy, 3D, and Tactical): closest matches first, and among equally close ones the better-known games.

STAR WARS Zero Company™
Shared: Turn-Based Tactics · Turn-Based Strategy · Strategy

XCOM 2
Shared: Strategy · Tactical · Turn-Based Tactics

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

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

Jagged Alliance 3
Shared: Strategy · Turn-Based Tactics · Turn-Based Strategy

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

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

Gears Tactics
Shared: Strategy · Turn-Based Tactics · Tactical

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

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

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

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

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

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

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

Warhammer 40,000: Chaos Gate - Daemonhunters
Shared: Turn-Based Tactics · Turn-Based Strategy · Strategy

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

Xenonauts 2
Shared: Strategy · Turn-Based Strategy · Turn-Based Tactics

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

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

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

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

Showgunners
Shared: Turn-Based Tactics · Turn-Based Strategy · Tactical

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