Games like Julio's Adventure 3
Games like Julio's Adventure 3 include Outlast, Poppy Playtime, Five Nights at Freddy's: Security Breach, Bendy and the Dark Revival, and Resident Evil Village. We matched them by the tags players give Julio's Adventure 3 on Steam (Horror, Singleplayer, Survival Horror, First-Person, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Survival Horror · First-Person

Poppy Playtime
Shared: Horror · Singleplayer · First-Person

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

Bendy and the Dark Revival
Shared: Horror · Singleplayer · First-Person

Resident Evil Village
Shared: Horror · Survival Horror · Singleplayer

Outlast 2
Shared: Horror · Survival Horror · First-Person

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · Singleplayer

The Forest
Shared: Horror · Survival Horror · Adventure

Resident Evil Requiem
Shared: Horror · Survival Horror · Singleplayer

Five Nights at Freddy's
Shared: Horror · Singleplayer · Survival Horror

The Beast Inside
Shared: Horror · Survival Horror · First-Person

SOMA
Shared: Horror · Survival Horror · Atmospheric

Escape the Backrooms
Shared: Horror · Survival Horror · First-Person

Ultimate Custom Night
Shared: Horror · Singleplayer · Survival Horror

Little Nightmares II
Shared: Horror · Singleplayer · Adventure

Bendy and the Ink Machine
Shared: Horror · Singleplayer · First-Person

Amnesia: Rebirth
Shared: First-Person · Action-Adventure · Singleplayer

Resident Evil 4
Shared: Horror · Survival Horror · Singleplayer

Slender: The Arrival
Shared: Horror · Survival Horror · First-Person

Darkwood
Shared: Horror · Survival Horror · Adventure

Choo-Choo Charles
Shared: Horror · Survival Horror · Singleplayer

Five Nights at Freddy's 2
Shared: Horror · Singleplayer · Survival Horror

The Outlast Trials
Shared: Horror · Survival Horror · First-Person

Little Nightmares
Shared: Horror · Singleplayer · Adventure