Bunker days, Olgami (eng title Trapped)
Maybe Bastard? It has a similar vibe but not necessarily horror
What's the manhwa name ? " Bastard? I want find it in this site
Yes, Bastard. By the same author of Sweet home
Here's the link: https://www.mangago.me/read-manga/bastard_hwang_youngchan/
If the link doesn't work, its on webtoon :>
I really like this, anyone have any similar recs??