Games like Earth Defense Force: Insect Armageddon
Games like Earth Defense Force: Insect Armageddon include HELLDIVERS™ 2, STAR WARS™ Battlefront™ II, Warhammer 40,000: Space Marine 2, EARTH DEFENSE FORCE 5, and EARTH DEFENSE FORCE 4.1 The Shadow of New Despair. We matched them by the tags players give Earth Defense Force: Insect Armageddon on Steam (Action, Third-Person Shooter, Robots, Online Co-Op, and Sci-fi): closest matches first, and among equally close ones the better-known games.

HELLDIVERS™ 2
Shared: Third-Person Shooter · Online Co-Op · Action

STAR WARS™ Battlefront™ II
Shared: Third-Person Shooter · Action · Singleplayer

Warhammer 40,000: Space Marine 2
Shared: Action · Co-op · Third-Person Shooter

EARTH DEFENSE FORCE 5
Shared: Action · Third-Person Shooter · Co-op

EARTH DEFENSE FORCE 4.1 The Shadow of New Despair
Shared: Action · Third-Person Shooter · Co-op

Aliens: Fireteam Elite
Shared: Co-op · Action · Third-Person Shooter

PUBG: BATTLEGROUNDS
Shared: Third-Person Shooter · Action · Shooter

Grand Theft Auto V Legacy
Shared: Action · Third-Person Shooter · Third Person

Warhammer 40,000: Space Marine - Anniversary Edition
Shared: Action · Third-Person Shooter · Sci-fi

Warframe
Shared: Third-Person Shooter · Action · Online Co-Op

Risk of Rain 2
Shared: Third-Person Shooter · Co-op · Action

OUTRIDERS
Shared: Co-op · Third-Person Shooter · Action

Tom Clancy's Ghost Recon® Wildlands
Shared: Co-op · Action · Singleplayer

Resident Evil 6
Shared: Action · Co-op · Third-Person Shooter

Resident Evil 5
Shared: Action · Co-op · Third-Person Shooter

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Third-Person Shooter · Sci-fi

EARTH DEFENSE FORCE 6
Shared: Action · Third-Person Shooter · Online Co-Op

Dead Space™ 3
Shared: Action · Co-op · Online Co-Op

ARC Raiders
Shared: Third-Person Shooter · Online Co-Op · Multiplayer

Tom Clancy’s The Division™
Shared: Third-Person Shooter · Action · Co-op

Tom Clancy’s Splinter Cell Blacklist
Shared: Action · Co-op · Singleplayer

World War Z
Shared: Action · Co-op · Online Co-Op

The First Descendant
Shared: Third-Person Shooter · Action · Online Co-Op

Tom Clancy's Ghost Recon® Breakpoint
Shared: Co-op · Action · Singleplayer