Lately i just discovered an alpha version of a new indie horror game called Hylophobia.
I just saw MarkiplierGAME making a LP of it, and it seems incredibely horryfing!
Spoiler below!
Whispering behind you, turning around a SKULL SUDDENTLY APPEARS!?
it's a bit like slender just in another form of objective, though it's made on the same engine, but you'll have to collect orbs instead of letters in this game, and the enemy is "what i've seen so far" a bounch of skulls that yells.... really loud. starring at them for too long kills you. The most terryfing part is the Whispers, saying randomly "Hello" or "psst"