"While there may be scarier games out there," Um. Name one? Amnesia? D's Diner? Resident Evil? This is pretty much as scary as the best the genre has to offer.
I realize you can't go "BEST GAME EVAR" cuz it's an indie title and AAA ad revenue is your lifeblood. But at least downplay the graphics, or the length, or the complexity of gameplay, or something else that is actually arguably one of Slender's weaknesses.
Don't downplay the one thing the game gets right!
Paranoia and Fear? Dread? Adrenaline rush? Tension?
GUESS WHAT, EACH ONE OF THOSE WORDS MEANS THE GAME WAS SCARY!
Note: Previous (I.E. censored) post edited to avoid namecalling. Thanks to the helpful staff at The Escapist for issuing a warning.