Games like Spaceguy: Red Space
Games like Spaceguy: Red Space include DOOM Eternal, Serious Sam 4, Serious Sam 3: BFE, Prodeus, and Wolfenstein II: The New Colossus. We matched them by the tags players give Spaceguy: Red Space on Steam (Indie, Action, Adventure, Violent, and Aliens): closest matches first, and among equally close ones the better-known games.
DOOM Eternal
Shared: Action · Gore · Violent
Serious Sam 4
Shared: Action · Gore · Violent
Serious Sam 3: BFE
Shared: Action · FPS · Gore
Prodeus
Shared: Action · Indie · FPS
Wolfenstein II: The New Colossus
Shared: Action · FPS · Violent
Bright Memory: Infinite
Shared: Action · Indie · FPS
BioShock Infinite
Shared: Action · Adventure · Story Rich
Hotline Miami
Shared: Action · Indie · Violent
Bulletstorm: Full Clip Edition
Shared: Action · Violent · Adventure
Half-Life 2
Shared: Action · FPS · Story Rich
Maximum Action
Shared: Action · Indie · Violent
RoboCop: Rogue City
Shared: Action · FPS · Story Rich
Black Mesa
Shared: Action · FPS · Story Rich
Call of Juarez: Gunslinger
Shared: Action · FPS · Story Rich
My Friend Pedro
Shared: Indie · Action · Violent
Red Dead Redemption 2
Shared: Adventure · Action · Story Rich
Necromunda: Hired Gun
Shared: Action · Adventure · FPS
The Citadel
Shared: Indie · FPS · Gore
HROT
Shared: Indie · Action · FPS
Half-Life: Alyx
Shared: Story Rich · FPS · Action
Hotline Miami 2: Wrong Number
Shared: Action · Violent · Gore
Serious Sam HD: The First Encounter
Shared: Action · FPS · Gore
High On Life
Shared: Adventure · FPS · Action
Serious Sam Fusion 2017 (beta)
Shared: Action · Indie · Violent