Watch Out, They’re Not Human

Doppelgangers + No Superpowers + Mind Games + Military + Horror + Survival, with multiple storylines.

South China Sea, Mirage Island. A weather station has been out of contact for 47 hours. A six-person reconnaissance team lands to investigate.

They find an empty building, a wall covered in flesh, and a warning written in blood with a finger:

"Be careful."

It's not an enemy. It's not a beast. It's something that looks exactly like them, but isn't human at all.

All you have to do is be careful and not let them replace you.