Games like In My Defense
Games like In My Defense include METAL SLUG 3, METAL SLUG, METAL SLUG X, Huntdown, and Warhammer 40,000: Boltgun. We matched them by the tags players give In My Defense on Steam (Retro, Side Scroller, Old School, Arcade, and Singleplayer): closest matches first, and among equally close ones the better-known games.

METAL SLUG 3
Shared: Arcade · Side Scroller · Retro

METAL SLUG
Shared: Side Scroller · Arcade · Retro

METAL SLUG X
Shared: Arcade · Retro · Action

Huntdown
Shared: Side Scroller · Retro · Action

Warhammer 40,000: Boltgun
Shared: Retro · Old School · Action

Blazing Chrome
Shared: Retro · Side Scroller · Action

METAL SLUG 2
Shared: Side Scroller · Arcade · Retro

METAL SLUG XX
Shared: Retro · Action · Arcade

Planes, Bullets and Vodka
Shared: Retro · Shoot 'Em Up · Action

DRAINUS
Shared: Shoot 'Em Up · Action · Singleplayer

Contra Anniversary Collection
Shared: Side Scroller · Retro · Action

ARCADE GAME SERIES: GALAGA
Shared: Retro · Arcade · Shoot 'Em Up

PAC-MAN™ Championship Edition DX+
Shared: Retro · Arcade · Action

Cyberhunt
Shared: Action · Shoot 'Em Up · Arcade

Shovel Knight: Treasure Trove
Shared: Retro · Side Scroller · Action

Geometry Wars: Retro Evolved
Shared: Retro · Arcade · Singleplayer

Alex Jones: NWO Wars
Shared: Arcade · Side Scroller · Action

LUFTRAUSERS
Shared: Arcade · Action · Retro

Contra: Operation Galuga
Shared: Arcade · Action · Side Scroller

R-Type Final 2
Shared: Side Scroller · Shoot 'Em Up · Arcade

Zombotron
Shared: Action · Singleplayer · Side Scroller

DOOM + DOOM II
Shared: Retro · Action · Old School

Kero Blaster
Shared: Side Scroller · Shoot 'Em Up · Arcade

Ultratron
Shared: Retro · Arcade · Action