Darkening Ruins

A group of rock climbers find out that locals found a giant hole in the middle of the rainforest, their curiosity peaked and they set off to explore the area not knowing what they would find. While descending they find a cave, inside there are markings and strange rock formations and without much thought, they trekked forward. They had no idea what they got themselves into...
Monsters... Labyrinths and the blood rituals... The rock climbers thought they would find a secret cave and instead they found a hell that would seal their fates, now it was up to them to survive with whatever means necessary... Not everyone will survive and only the strong and intelligent make it out alive...