Games like Mr. Sun's Hatbox
Games like Mr. Sun's Hatbox include Counter-Strike 2, PUBG: BATTLEGROUNDS, Tomb Raider Game of the Year, Fallout 4, and Borderlands 2. We matched them by the tags players give Mr. Sun's Hatbox on Steam (Action, Online Co-Op, Metroidvania, Adventure, and Tactical): closest matches first, and among equally close ones the better-known games.

Counter-Strike 2
Shared: Action · Shooter · Tactical

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · Online Co-Op

Tomb Raider Game of the Year
Shared: Action · Adventure · Story Rich

Fallout 4
Shared: Adventure · RPG · Exploration

Borderlands 2
Shared: Action · Shooter · RPG

BioShock Infinite
Shared: Action · Shooter · Adventure

Avatar: Frontiers of Pandora™
Shared: Action · Adventure · Online Co-Op

PEAK
Shared: Online Co-Op · Adventure · Exploration

Ori and the Will of the Wisps
Shared: Metroidvania · Action · Adventure

Rise of the Tomb Raider™
Shared: Action · Adventure · Story Rich

Dust: An Elysian Tail
Shared: Action · Metroidvania · Adventure

Red Dead Redemption 2
Shared: Action · Adventure · Story Rich

Far Cry 3
Shared: Action · Adventure · Shooter

Escape From Duckov
Shared: Action · Adventure · Shooter

Tom Clancy’s Splinter Cell Blacklist
Shared: Action · Adventure · Shooter

God of War
Shared: Action · Adventure · Story Rich

PAYDAY 2
Shared: Action · Online Co-Op · Shooter

F.I.S.T.: Forged In Shadow Torch
Shared: Action · Metroidvania · Adventure

Tom Clancy's Rainbow Six Siege
Shared: Tactical · Shooter · Online Co-Op

Gunfire Reborn
Shared: Online Co-Op · Action · Roguelite

South Park™: The Stick of Truth™
Shared: Adventure · Action · RPG

UnEpic
Shared: Metroidvania · Action · RPG

Remnant: From the Ashes
Shared: Action · Adventure · Online Co-Op

Lords of the Fallen
Shared: Online Co-Op · Action · RPG