Games like Zombie Commander
Games like Zombie Commander include Broken Arrow, WARNO, Wargame: Red Dragon, Company of Heroes 3, and Syrian Warfare. We matched them by the tags players give Zombie Commander on Steam (Strategy, Zombies, RTS, Wargame, and Real Time Tactics): closest matches first, and among equally close ones the better-known games.

Broken Arrow
Shared: Strategy · Wargame · RTS

WARNO
Shared: Wargame · Strategy · RTS

Wargame: Red Dragon
Shared: Strategy · RTS · Wargame

Company of Heroes 3
Shared: Strategy · RTS · Wargame

Syrian Warfare
Shared: RTS · Real Time Tactics · Wargame

Call to Arms - Gates of Hell: Ostfront
Shared: Strategy · RTS · Real Time Tactics

Starship Troopers: Terran Command
Shared: Strategy · RTS · Wargame

Ultimate General: Civil War
Shared: Wargame · Real Time Tactics · Strategy

Kingdom Heroes 8
Shared: RTS · Strategy · Real Time Tactics

Total War: THREE KINGDOMS
Shared: Strategy · RTS · War

Total War: WARHAMMER III
Shared: Strategy · RTS · Real Time Tactics

Bad North: Jotunn Edition
Shared: Wargame · Real Time Tactics · RTS

Wargame: Airland Battle
Shared: Strategy · RTS · Wargame

Men of War: Assault Squad 2
Shared: Strategy · RTS · War

Regiments
Shared: Strategy · Wargame · Real Time Tactics

Master of Command
Shared: Strategy · RTS · Real Time Tactics

Age of History 3
Shared: Strategy · Wargame · RTS

Total War: WARHAMMER II
Shared: Strategy · RTS · War

Wargame: European Escalation
Shared: Strategy · RTS · Wargame

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

Ukrainian Warfare: Gostomel Heroes
Shared: Wargame · RTS · Real Time Tactics

Steel Division 2
Shared: Strategy · RTS · War

Zombie Night Terror
Shared: Strategy · Zombies · Pixel Graphics

Plants vs. Zombies GOTY Edition
Shared: Zombies · Strategy · 2D