Games like Astro Fighters 2178
Games like Astro Fighters 2178 include METAL SLUG, Broforce, METAL SLUG 3, STAR WARS™ Battlefront™ II, and METAL SLUG X. We matched them by the tags players give Astro Fighters 2178 on Steam (Action, Arcade, Shooter, Shoot 'Em Up, and Side Scroller): closest matches first, and among equally close ones the better-known games.

METAL SLUG
Shared: Action · Arcade · Side Scroller

Broforce
Shared: Action · 2D · Shooter

METAL SLUG 3
Shared: Arcade · Action · Side Scroller

STAR WARS™ Battlefront™ II
Shared: Shooter · Action · Space

METAL SLUG X
Shared: Action · Arcade · Shoot 'Em Up

Guns, Gore and Cannoli 2
Shared: Action · Side Scroller · 2D

Huntdown
Shared: Action · Shooter · Side Scroller

METAL SLUG 2
Shared: Action · Arcade · Shoot 'Em Up

Battlefield™ 2042
Shared: Shooter · Action · Multiplayer

HELLDIVERS™ 2
Shared: Action · Shooter · Multiplayer

Borderlands 2
Shared: Action · Shooter · Co-op

Guns, Gore & Cannoli
Shared: Action · Side Scroller · 2D

Grand Theft Auto V Legacy
Shared: Action · Shooter · Multiplayer

Battlefield™ 6
Shared: Action · Shooter · Multiplayer

Left 4 Dead 2
Shared: Shooter · Action · Co-op

DARIUSBURST Chronicle Saviours
Shared: Arcade · Action · Shoot 'Em Up

Call of Duty®
Shared: Shooter · Action · Multiplayer

Halo Infinite
Shared: Action · Shooter · Multiplayer

METAL SLUG XX
Shared: Action · Shooter · Arcade

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Shooter · Space

Streets of Rage 4
Shared: Action · Arcade · 2D

Revolution Ace
Shared: Action · Shoot 'Em Up · Shooter

Alex Jones: NWO Wars
Shared: Action · Arcade · Shooter

Starship Troopers: Extermination
Shared: Action · Arcade · Co-op