Games like Gladio
Games like Gladio include GoreBox, Sword With Sauce, Ghostrunner, Chivalry 2, and MORDHAU. We matched them by the tags players give Gladio on Steam (Hack and Slash, Sandbox, Parkour, PvE, and Difficult): closest matches first, and among equally close ones the better-known games.

GoreBox
Shared: Sandbox · Gore · PvE

Sword With Sauce
Shared: Parkour · Gore · Action

Ghostrunner
Shared: Hack and Slash · Difficult · First-Person

Chivalry 2
Shared: Hack and Slash · Swordplay · Gore

MORDHAU
Shared: Gore · First-Person · Hack and Slash

Half Sword
Shared: Gore · Swordplay · Sandbox

Blade and Sorcery
Shared: Sandbox · Gore · Swordplay

Shadow Warrior
Shared: Hack and Slash · Gore · Action

Warhammer: Vermintide 2
Shared: Hack and Slash · Gore · PvE

Chivalry: Medieval Warfare
Shared: Gore · First-Person · Action

NINJA GAIDEN 4
Shared: Hack and Slash · Gore · Action

METAL GEAR RISING: REVENGEANCE
Shared: Hack and Slash · Action · Swordplay

People Playground
Shared: Sandbox · Gore · Singleplayer

Bright Memory: Infinite
Shared: Hack and Slash · Action · First-Person

DOOM Eternal
Shared: Gore · Action · First-Person

Overgrowth
Shared: Parkour · Sandbox · Action

Shadow Warrior 2
Shared: Gore · Hack and Slash · Action

Devil May Cry 5
Shared: Hack and Slash · Action · Difficult

Prototype™
Shared: Gore · Parkour · Hack and Slash

Dying Light
Shared: Parkour · First-Person · Gore

Ghostrunner 2
Shared: Hack and Slash · Difficult · Action

Prototype 2
Shared: Gore · Action · Hack and Slash

DOOM
Shared: Gore · Action · First-Person

Fatekeeper
Shared: Hack and Slash · First-Person · Action