Games like APOX
Games like APOX include Infection Free Zone, Tooth and Tail, Nuclear Dawn, Total War: WARHAMMER II, and Call to Arms. We matched them by the tags players give APOX on Steam (Strategy, Action, Indie, RTS, and Post-apocalyptic): closest matches first, and among equally close ones the better-known games.

Infection Free Zone
Shared: Strategy · Post-apocalyptic · RTS

Tooth and Tail
Shared: Strategy · RTS · Indie

Nuclear Dawn
Shared: Strategy · Action · RTS

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

Call to Arms
Shared: Strategy · Action · RTS

Total War: WARHAMMER III
Shared: Strategy · RTS · Action

HighFleet
Shared: Strategy · Indie · Post-apocalyptic

Natural Selection 2
Shared: Strategy · Action · RTS

Infested Planet
Shared: Strategy · Action · RTS

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

Freeman: Guerrilla Warfare
Shared: Strategy · Action · Indie

Shadow Tactics: Blades of the Shogun
Shared: Strategy · Indie · Action

Aliens: Dark Descent
Shared: Strategy · Action · RTS

Command & Conquer 3 Tiberium Wars™
Shared: Strategy · Action · RTS

Command & Conquer Red Alert™ 2 and Yuri’s Revenge™
Shared: Strategy · Action · RTS

Warhammer 40,000: Dawn of War III
Shared: Strategy · RTS · Action

Door Kickers
Shared: Strategy · Action · Indie

Plague Inc: Evolved
Shared: Strategy · Indie · Post-apocalyptic

Ultimate Epic Battle Simulator 2
Shared: Strategy · Action · RTS

Taur
Shared: Strategy · Action · Indie

Touhou Big Big Battle
Shared: Strategy · Indie · Action

STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · RTS · Action

Wargame: Red Dragon
Shared: Strategy · RTS · Indie

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Indie