Games like Hangover
Games like Hangover include Slime Rancher, DAVE THE DIVER, Escape the Backrooms, PEAK, and Thief Simulator. We matched them by the tags players give Hangover on Steam (Adventure, RPG, Casual, Simulation, and Roguelike): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: Adventure · Exploration · Simulation

DAVE THE DIVER
Shared: Adventure · Casual · Exploration

Escape the Backrooms
Shared: Adventure · Exploration · First-Person

PEAK
Shared: Adventure · Exploration · First-Person

Thief Simulator
Shared: Simulation · Adventure · First-Person

Home Behind
Shared: Adventure · RPG · Casual

My Time at Portia
Shared: RPG · Simulation · Casual

Lethal Company
Shared: First-Person · Exploration · Horror

RV There Yet?
Shared: Adventure · Exploration · First-Person

Firewatch
Shared: Adventure · Exploration · First-Person

Fallout 4
Shared: RPG · Adventure · Exploration

Hand Simulator: Survival
Shared: Adventure · Simulation · RPG

Internet Cafe Simulator 2
Shared: Simulation · Exploration · 3D

The Exit 8
Shared: Exploration · Adventure · 3D

Home Behind 2
Shared: RPG · Adventure · Roguelike

[Chillas Art] The Convenience Store
Shared: Adventure · Simulation · Casual

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

DREDGE
Shared: Adventure · Exploration · RPG

MiSide
Shared: First-Person · Psychological Horror · 3D

Chinese Parents
Shared: Simulation · Casual · RPG

The Forest
Shared: Adventure · Exploration · First-Person

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Adventure · Simulation

Five Nights at Freddy's: Security Breach
Shared: Adventure · Exploration · First-Person

Chained Together
Shared: Adventure · Casual · Simulation