Games like Defender Zed-001
Games like Defender Zed-001 include STAR WARS™ Battlefront™ II, STAR WARS Jedi: Survivor™, Starship Troopers: Extermination, Dead Space (2008), and Alien: Isolation. We matched them by the tags players give Defender Zed-001 on Steam (Arcade, Space, Action, Aliens, and Sci-fi): closest matches first, and among equally close ones the better-known games.

STAR WARS™ Battlefront™ II
Shared: Space · Action · Sci-fi

STAR WARS Jedi: Survivor™
Shared: Action · Sci-fi · Space

Starship Troopers: Extermination
Shared: Action · Sci-fi · Aliens

Dead Space (2008)
Shared: Action · Space · Sci-fi

Alien: Isolation
Shared: Aliens · Sci-fi · Space

Call of Duty®: Infinite Warfare
Shared: Action · Space · Futuristic

No Man's Sky
Shared: Space · Sci-fi · Survival

Prey
Shared: Space · Sci-fi · Action

PRAGMATA
Shared: Action · Sci-fi · Futuristic

Warhammer 40,000: Space Marine 2
Shared: Action · Sci-fi · Space

Crysis 3 Remastered
Shared: Action · Aliens · Sci-fi

Aliens: Colonial Marines Collection
Shared: Action · Aliens · Sci-fi

Starfield
Shared: Space · Sci-fi · Singleplayer

Crysis Remastered
Shared: Action · Sci-fi · Aliens

Half-Life 2
Shared: Action · Sci-fi · Singleplayer

Dead Space
Shared: Space · Sci-fi · Singleplayer

Halo: Spartan Assault
Shared: Action · Sci-fi · Arcade

Marvel's Guardians of the Galaxy
Shared: Action · Sci-fi · Singleplayer

Crysis 2 Remastered
Shared: Action · Aliens · Futuristic

Titanfall® 2
Shared: Action · Sci-fi · Futuristic

Crysis 2 - Maximum Edition
Shared: Action · Sci-fi · Aliens

Trailmakers
Shared: Space · Action · Singleplayer

Breathedge
Shared: Space · Sci-fi · Survival

Halo: Campaign Evolved
Shared: Action · Sci-fi · Space