Games like Metu Caligine
Games like Metu Caligine include Fallout 4, BioShock Infinite, S.T.A.L.K.E.R.: Shadow of Chornobyl - Enhanced Edition, Fallout: New Vegas, and PUBG: BATTLEGROUNDS. We matched them by the tags players give Metu Caligine on Steam (Adventure, RPG, Action, Shooter, and Exploration): closest matches first, and among equally close ones the better-known games.

Fallout 4
Shared: RPG · Adventure · Exploration

BioShock Infinite
Shared: Action · Shooter · RPG

S.T.A.L.K.E.R.: Shadow of Chornobyl - Enhanced Edition
Shared: Adventure · Action · RPG

Fallout: New Vegas
Shared: RPG · Exploration · Adventure

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · FPS

Borderlands 2
Shared: Action · Shooter · RPG

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Shooter · RPG · FPS

Gothic 1 Remake
Shared: Adventure · RPG · Action

Echo Point Nova
Shared: Shooter · Exploration · Action

Far Cry® Primal
Shared: Action · Adventure · Exploration

Escape From Duckov
Shared: Adventure · Action · Shooter

S.T.A.L.K.E.R.: Call of Prypiat - Enhanced Edition
Shared: Adventure · Action · RPG

Far Cry® 4
Shared: Action · Adventure · Shooter

Black Myth: Wukong
Shared: Action · RPG · Action RPG

Left 4 Dead 2
Shared: Shooter · Action · FPS

S.T.A.L.K.E.R.: Clear Sky - Enhanced Edition
Shared: Adventure · Action · RPG

Far Cry 3
Shared: Adventure · Action · Shooter

Tainted Grail: The Fall of Avalon
Shared: RPG · Adventure · Exploration

Half-Life 2
Shared: Action · Adventure · FPS

Rust
Shared: Adventure · Action · Survival

Far Cry® 6
Shared: Adventure · Shooter · Action

Monster Hunter: World
Shared: Action · RPG · Adventure

Apex Legends™
Shared: Shooter · Action · FPS

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