Games like Threshold
Games like Threshold include Chivalry: Medieval Warfare, DOOM Eternal, Call of Duty®, PUBG: BATTLEGROUNDS, and Serious Sam Fusion 2017 (beta). We matched them by the tags players give Threshold on Steam (Indie, Early Access, Gore, Violent, and FPS): closest matches first, and among equally close ones the better-known games.

Chivalry: Medieval Warfare
Shared: Gore · Multiplayer · Indie

DOOM Eternal
Shared: Gore · FPS · Violent

Call of Duty®
Shared: FPS · Multiplayer · First-Person

PUBG: BATTLEGROUNDS
Shared: FPS · Multiplayer · PvP

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

GoreBox
Shared: Gore · Violent · FPS

Liars Bar
Shared: Indie · Multiplayer · PvP

Paint the Town Red
Shared: Gore · Violent · Multiplayer

Dead by Daylight
Shared: Gore · Multiplayer · Violent

Battlefield™ 1
Shared: FPS · Multiplayer · First-Person

Ready or Not
Shared: FPS · Multiplayer · Indie

Insurgency: Sandstorm
Shared: FPS · Multiplayer · First-Person

Left 4 Dead 2
Shared: FPS · Multiplayer · Gore

Call of Duty®: Warzone™
Shared: FPS · Multiplayer · Violent

Blood and Bacon
Shared: Gore · Multiplayer · FPS

Squad
Shared: FPS · PvP · Multiplayer

Apex Legends™
Shared: FPS · Multiplayer · PvP

Bodycam
Shared: FPS · Multiplayer · First-Person

WARDOGS
Shared: FPS · Multiplayer · PvP

Serious Sam 3: BFE
Shared: Gore · FPS · Multiplayer

DOOM
Shared: Gore · FPS · Multiplayer

MORDHAU
Shared: Gore · Multiplayer · First-Person

Serious Sam 4
Shared: Gore · FPS · Violent

Maximum Action
Shared: Gore · Indie · Violent