Sanatkumara

"The pyramid also acts as a prison to a being called Sanatkumara, it was he who destroyed the ancient civilizations."

- Tomb Raider Concept Document march 1995

Sanatkumara is a character from an earlier version of the original Tomb Raider.

Biography
Sanatkumara was the one who destroyed the Atlan civilization 100000 years ago. For it the "demon" was imprisoned inside the Great Pyramid and the prison locked with The Key.

Lara Cruz, after having collected three pieces, takes an artefact called the Key to the Master Pyramid. When Lara uses the Key in the center of the pyramid to activate it, but she actually deactivates it. This releases the demon Sanatkumara who was imprisoned in a field beneath the floor. Lara battled Sanatkumara to obtain the dropped key and reactivated the pyramid.

Trivia

 * In Hinduism, Sage Sanatkumara was one of the four Kumaras or spiritual sons of Brahma.