This is one of the spookiest resource pack I have ever used I dare you to try it

InterHell 2000 - http://www.planetminecraft.com/texture_pack/intermacgod-realistic-stone-age-packs-512-and-256-v174/

PC Specs
( Love You Freedom ) ( Bro Love MovingTargetTez he built it )

Operating Systems : Microsoft Windows 7 Ultimate (64 bit) Cebtral
Processor : AMD Phenom(tm) II X6 1090T Processor Memory
(RAM) : 16.0 GB Graphics : AMD Radeon HD 7870 Series
Primary Hard Disk : 931 GB
Mother Board : MSI MS - 7599