Games like Overpowered 1 - Mars Infestation
Games like Overpowered 1 - Mars Infestation include Cyberhunt, Hotline Miami, Hotline Miami 2: Wrong Number, Halo: Spartan Assault, and Broforce. We matched them by the tags players give Overpowered 1 - Mars Infestation on Steam (Twin Stick Shooter, Top-Down, Action, Dark, and Casual): closest matches first, and among equally close ones the better-known games.

Cyberhunt
Shared: Action · Twin Stick Shooter · Casual

Hotline Miami
Shared: Action · Top-Down · Pixel Graphics

Hotline Miami 2: Wrong Number
Shared: Action · Pixel Graphics · Top-Down

Halo: Spartan Assault
Shared: Action · Top-Down · Twin Stick Shooter

Broforce
Shared: Action · Pixel Graphics · 2D

Planes, Bullets and Vodka
Shared: Action · Casual · Top-Down

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

Enter the Gungeon
Shared: Pixel Graphics · Twin Stick Shooter · Action

HELLDIVERS™ Dive Harder Edition
Shared: Twin Stick Shooter · Action · Top-Down

Timberman
Shared: Casual · Action · Pixel Graphics

Space Pirates and Zombies
Shared: Action · Top-Down · Sci-fi

Heat Signature
Shared: Top-Down · Action · Sci-fi

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

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · Indie

UBERMOSH
Shared: Action · Pixel Graphics · Twin Stick Shooter

Angel at Dusk
Shared: Action · Top-Down · Shooter

SANABI
Shared: Action · Pixel Graphics · 2D

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

Alien Breed: Impact
Shared: Action · Top-Down · Sci-fi

Defy Gravity Extended
Shared: Action · 2D · Indie

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

The Binding of Isaac
Shared: Dark · Action · Top-Down

Out There Somewhere
Shared: Pixel Graphics · Action · 2D

Reassembly
Shared: Action · Top-Down · 2D