Games like Empyrean Defense
Games like Empyrean Defense include Bloons TD 6, Hearts of Iron IV, Age of Empires III: Definitive Edition, Starship Troopers: Terran Command, and Battlefield™ 6. We matched them by the tags players give Empyrean Defense on Steam (Strategy, Tower Defense, 3D, Military, and War): closest matches first, and among equally close ones the better-known games.

Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer

Hearts of Iron IV
Shared: Strategy · War · Military

Age of Empires III: Definitive Edition
Shared: Strategy · Military · War

Starship Troopers: Terran Command
Shared: Strategy · Military · War

Battlefield™ 6
Shared: Military · War · Singleplayer

Ravenfield
Shared: War · Military · Singleplayer

Thronefall
Shared: Strategy · Tower Defense · 3D

Master of Command
Shared: Strategy · Military · War

Broken Arrow
Shared: Strategy · War · 3D

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

Northend Tower Defense
Shared: Tower Defense · Strategy · War

Company of Heroes 2
Shared: Strategy · War · Military

XCOM 2
Shared: Strategy · War · Military

Creeper World 4
Shared: Tower Defense · Strategy · 3D

Warpips
Shared: Strategy · Tower Defense · War

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · Singleplayer

Totally Accurate Battle Simulator
Shared: Strategy · War · Singleplayer

Call to Arms
Shared: Strategy · Military · War

Emberward
Shared: Tower Defense · Strategy · 3D

Total War: EMPIRE – Definitive Edition
Shared: Strategy · Military · War

Sands of Salzaar
Shared: Strategy · War · Singleplayer

Door Kickers 2: Task Force North
Shared: Military · Strategy · Top-Down

Steel Division 2
Shared: Strategy · Military · War

This War of Mine
Shared: Strategy · War · Singleplayer