Games like Z Rush
Games like Z Rush include Plague Inc: Evolved, Path of Exile, Age of Empires III: Definitive Edition, Age of Mythology: Retold, and Ultimate Custom Night. We matched them by the tags players give Z Rush on Steam (Hack and Slash, Indie, RTS, 3D, and Strategy): closest matches first, and among equally close ones the better-known games.

Plague Inc: Evolved
Shared: Indie · Strategy · Singleplayer

Path of Exile
Shared: Hack and Slash · Free to Play · Indie

Age of Empires III: Definitive Edition
Shared: RTS · Strategy · Singleplayer

Age of Mythology: Retold
Shared: RTS · Strategy · 3D

Ultimate Custom Night
Shared: Free to Play · Singleplayer · Strategy

Hades
Shared: Hack and Slash · Indie · Singleplayer

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

They Are Billions
Shared: Strategy · RTS · Zombies

Infection Free Zone
Shared: Zombies · Strategy · RTS

Tempest Rising
Shared: RTS · Strategy · 3D

Buckshot Roulette
Shared: Indie · Strategy · Singleplayer

Sands of Salzaar
Shared: Indie · Strategy · Hack and Slash

Idle Champions of the Forgotten Realms
Shared: Strategy · Free to Play · Indie

Quarantine Zone: The Last Check
Shared: Zombies · Singleplayer · 3D

Creeper World 3: Arc Eternal
Shared: Indie · RTS · Strategy

Warhammer 40,000: Dawn of War - Definitive Edition
Shared: RTS · Strategy · Singleplayer

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

Totally Accurate Battle Simulator
Shared: Strategy · Indie · Singleplayer

Circle Empires
Shared: Indie · Strategy · RTS

Cossacks 3
Shared: RTS · Strategy · Singleplayer

Bloons TD 6
Shared: Strategy · Singleplayer · 3D

Boid
Shared: Indie · Strategy · RTS

Rusted Warfare - RTS
Shared: RTS · Strategy · Indie

Blood of Steel
Shared: Hack and Slash · Strategy · Free to Play