Games like Project Horror Anthology: Project Prequel
Games like Project Horror Anthology: Project Prequel include Resident Evil Requiem, Five Nights at Freddy's: Into the Pit, Resident Evil 2, Five Nights at Freddy's: Security Breach, and Mina the Hollower. We matched them by the tags players give Project Horror Anthology: Project Prequel on Steam (Action-Adventure, Multiple Endings, Pixel Graphics, 2D, and Horror): closest matches first, and among equally close ones the better-known games.

Resident Evil Requiem
Shared: Survival Horror · Horror · Zombies

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

Resident Evil 2
Shared: Horror · Survival Horror · Zombies

Five Nights at Freddy's: Security Breach
Shared: Horror · Multiple Endings · Survival Horror

Mina the Hollower
Shared: Action-Adventure · Pixel Graphics · 2D

Resident Evil 4
Shared: Horror · Survival Horror · Zombies

Poppy Playtime
Shared: Horror · Survival Horror · Puzzle

The Last of Us™ Part I
Shared: Action-Adventure · Horror · Zombies

Endoparasitic
Shared: 2D · Horror · Survival Horror

Mad Father
Shared: Horror · Pixel Graphics · 2D

Resident Evil 3
Shared: Horror · Zombies · Survival Horror

Ib
Shared: Pixel Graphics · Horror · 2D

The Bunny Graveyard
Shared: Pixel Graphics · Action-Adventure · Horror

OMORI
Shared: Pixel Graphics · Multiple Endings · Horror

SANABI
Shared: Pixel Graphics · 2D · Action-Adventure

BlazBlue Entropy Effect
Shared: Action-Adventure · 2D · Pixel Graphics

Cat in the Box
Shared: Horror · Pixel Graphics · 2D

Dying Light
Shared: Horror · Survival Horror · Zombies

The Count Lucanor
Shared: Pixel Graphics · Horror · Survival Horror

The Dark Pictures Anthology: House of Ashes
Shared: Multiple Endings · Horror · Action-Adventure

Look Outside
Shared: Pixel Graphics · Horror · Survival Horror

Resident Evil 0
Shared: Horror · Survival Horror · Zombies

The Witch's House MV
Shared: Pixel Graphics · Horror · 2D

Undertale
Shared: Multiple Endings · Pixel Graphics · 2D