Games like Lucius II
Games like Lucius II include Lucius, Amnesia: The Dark Descent, Outlast, Little Nightmares, and Outlast 2. We matched them by the tags players give Lucius II on Steam (Gore, Horror, Villain Protagonist, Psychological Horror, and Indie): closest matches first, and among equally close ones the better-known games.

Lucius
Shared: Horror · Gore · Villain Protagonist

Amnesia: The Dark Descent
Shared: Gore · Horror · Psychological Horror

Outlast
Shared: Horror · Gore · Psychological Horror

Little Nightmares
Shared: Horror · Adventure · Dark

Outlast 2
Shared: Horror · Psychological Horror · Gore

CARRION
Shared: Gore · Villain Protagonist · Horror

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

Scorn
Shared: Gore · Horror · Psychological Horror

Lucius III
Shared: Gore · Villain Protagonist · Horror

Fran Bow
Shared: Psychological Horror · Horror · Adventure

Poppy Playtime
Shared: Horror · Psychological Horror · Dark

SOMA
Shared: Horror · Psychological Horror · Gore

Clive Barker's Hellraiser: Revival
Shared: Gore · Horror · Nudity

Sally Face - Episode One
Shared: Horror · Psychological Horror · Indie

The Evil Within 2
Shared: Horror · Psychological Horror · Gore

Buckshot Roulette
Shared: Horror · Dark · Indie

Manhunt
Shared: Gore · Horror · Psychological Horror

The Evil Within
Shared: Horror · Gore · Psychological Horror

Still Wakes the Deep
Shared: Horror · Gore · Psychological Horror

Resident Evil 2
Shared: Horror · Gore · Third Person

Mouthwashing
Shared: Horror · Psychological Horror · Gore

No, I'm not a Human
Shared: Horror · Psychological Horror · Indie

Detention
Shared: Horror · Psychological Horror · Indie

MADiSON
Shared: Horror · Psychological Horror · Dark