Games like ONCE IN MY HEAD
Games like ONCE IN MY HEAD include Black Myth: Wukong, Hades II, Heroes of Hammerwatch II, Hades, and Pixel Piracy. We matched them by the tags players give ONCE IN MY HEAD on Steam (Adventure, RPG, Action, Sandbox, and Roguelike): closest matches first, and among equally close ones the better-known games.

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

Hades II
Shared: Action · Roguelike · RPG

Heroes of Hammerwatch II
Shared: RPG · Action · Action RPG

Hades
Shared: Action Roguelike · Action · Roguelike

Pixel Piracy
Shared: Sandbox · Action Roguelike · Roguelike

Hero Siege
Shared: RPG · Action RPG · Action Roguelike

Path of Exile 2
Shared: RPG · Action RPG · Action

Noita
Shared: Roguelike · Sandbox · Action

VOIN
Shared: Action · RPG · Action Roguelike

Dead Cells
Shared: Adventure · Roguelike · Action Roguelike

Gothic 1 Remake
Shared: Adventure · RPG · Action

Eastern Exorcist
Shared: RPG · Action · Adventure

God of War Ragnarök
Shared: Adventure · Action · RPG

Wolcen: Lords of Mayhem
Shared: RPG · Action RPG · Adventure

Last Epoch
Shared: RPG · Action RPG · Action

DARK SOULS™ II
Shared: RPG · Adventure · Action

DARK SOULS™ II: Scholar of the First Sin
Shared: RPG · Action · Action RPG

Gunfire Reborn
Shared: Roguelike · Action · RPG

Monster Hunter: World
Shared: Action · RPG · Adventure

Mount & Blade: Warband
Shared: RPG · Sandbox · Action

Dragon's Dogma 2
Shared: RPG · Adventure · Action

Fallout 4
Shared: RPG · Adventure · Action

Lost Castle
Shared: Action Roguelike · Side Scroller · Roguelike

DARK SOULS™: REMASTERED
Shared: RPG · Action · Adventure