Games like Through the Kill Screen
Games like Through the Kill Screen include OMORI, Undertale, Persona 5 Royal, Fear & Hunger 2: Termina, and Persona 4 Golden. We matched them by the tags players give Through the Kill Screen on Steam (Horror, Dark Comedy, 1980s, RPG, and JRPG): closest matches first, and among equally close ones the better-known games.

OMORI
Shared: RPG · Horror · Story Rich

Undertale
Shared: RPG · Choices Matter · Story Rich

Persona 5 Royal
Shared: JRPG · RPG · Story Rich

Fear & Hunger 2: Termina
Shared: Horror · RPG · JRPG

Persona 4 Golden
Shared: JRPG · RPG · Story Rich

The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Story Rich · Choices Matter

LISA: The Painful
Shared: RPG · Story Rich · Choices Matter

Tales of the Black Forest
Shared: Horror · RPG · Story Rich

Persona 3 Reload
Shared: JRPG · RPG · Party-Based RPG

The Coffin of Andy and Leyley
Shared: Dark Comedy · Multiple Endings · Story Rich

No, I'm not a Human
Shared: Horror · Choices Matter · Story Rich

Not For Broadcast
Shared: 1980s · Dark Comedy · Choices Matter

Dragon Age: Origins - Ultimate Edition
Shared: RPG · Party-Based RPG · Choices Matter

Ib
Shared: Horror · 2D · RPG

Five Nights at Freddy's: Into the Pit
Shared: Horror · 2D · 1980s

STAR WARS™ Knights of the Old Republic™ II - The Sith Lords™
Shared: RPG · Story Rich · Choices Matter

OneShot
Shared: Story Rich · Choices Matter · Indie

Clair Obscur: Expedition 33
Shared: RPG · JRPG · Story Rich

Oxenfree
Shared: Choices Matter · Horror · Story Rich

Firework
Shared: Horror · 2D · Indie

Sanfu
Shared: RPG · 2D · Colorful

FINAL FANTASY VII REBIRTH
Shared: RPG · JRPG · Party-Based RPG

OCTOPATH TRAVELER II
Shared: RPG · JRPG · Party-Based RPG

Metaphor: ReFantazio
Shared: RPG · JRPG · Story Rich