Games like GLOWCOMA: chapter 1
Games like GLOWCOMA: chapter 1 include DOOM Eternal, CARRION, Serious Sam 4, Ready or Not, and Trepang2. We matched them by the tags players give GLOWCOMA: chapter 1 on Steam (Action, Adventure, Indie, Gore, and Violent): closest matches first, and among equally close ones the better-known games.

DOOM Eternal
Shared: Action · Gore · FPS

CARRION
Shared: Gore · Action · Indie

Serious Sam 4
Shared: Action · Gore · FPS

Ready or Not
Shared: FPS · Action · Horror

Trepang2
Shared: Action · Gore · FPS

Bulletstorm: Full Clip Edition
Shared: Action · Gore · Adventure

Hotline Miami
Shared: Action · Indie · Violent

Blood and Bacon
Shared: Gore · Action · FPS

DOOM
Shared: Action · Gore · FPS

Prodeus
Shared: Action · Gore · FPS

Wolfenstein II: The New Colossus
Shared: Action · Gore · FPS

Paint the Town Red
Shared: Action · Gore · Violent

Resident Evil Village
Shared: Action · Horror · Gore

Necromunda: Hired Gun
Shared: Action · Adventure · Gore

Lucius
Shared: Adventure · Gore · Horror

Bright Memory: Infinite
Shared: Action · Indie · FPS

Left 4 Dead 2
Shared: Action · FPS · Gore

Nightmare of Decay
Shared: Action · Horror · FPS

The Walking Dead: Saints & Sinners
Shared: Action · Adventure · Gore

The Beast Inside
Shared: Adventure · Action · Horror

Serious Sam Fusion 2017 (beta)
Shared: Action · Gore · Indie

G String
Shared: Action · Indie · Adventure

Back 4 Blood
Shared: Gore · Action · FPS

Blasphemous
Shared: Gore · Indie · Violent