Games like Diluvian Ultra: Awakening
Games like Diluvian Ultra: Awakening include Half-Life 2, Warhammer 40,000: Boltgun, BioShock Infinite, Apex Legends™, and Black Mesa. We matched them by the tags players give Diluvian Ultra: Awakening on Steam (Action, Shooter, Boomer Shooter, Sci-fi, and Gothic): closest matches first, and among equally close ones the better-known games.

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

Warhammer 40,000: Boltgun
Shared: Boomer Shooter · Shooter · Action

BioShock Infinite
Shared: Action · Shooter · FPS

Apex Legends™
Shared: Shooter · Action · FPS

Black Mesa
Shared: Action · Sci-fi · Shooter

Halo Infinite
Shared: Shooter · Action · Sci-fi

Titanfall® 2
Shared: Shooter · Action · Sci-fi

Far Cry® 5
Shared: Shooter · Action-Adventure · Action

CULTIC
Shared: Boomer Shooter · Shooter · Action

DOOM
Shared: Action · Shooter · FPS

POSTAL: Brain Damaged
Shared: Action · Shooter · Boomer Shooter

Far Cry® 6
Shared: Shooter · Action · Action-Adventure

Selaco
Shared: Shooter · Action · Boomer Shooter

FragPunk
Shared: Action · Shooter · FPS

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

Turbo Overkill
Shared: Action · Boomer Shooter · Shooter

Pixel Gun 3D: PC Edition
Shared: Shooter · Action · Pixel Graphics

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · FPS

Ion Fury
Shared: Boomer Shooter · Shooter · Action

Quake II
Shared: Action · Boomer Shooter · Shooter

Serious Sam: Siberian Mayhem
Shared: Action · Boomer Shooter · Shooter

Call of Duty®: Black Ops III
Shared: Shooter · Action · FPS

DOOM Eternal
Shared: Action · Shooter · FPS

Deep Rock Galactic
Shared: Shooter · FPS · Action