A holographic sentinel guards the ruins - caverns left behind by the extinct Tastan race.
You play Beni who knows enough about the caves to be cautious. Only few who have entered have been able to find the way out. Now a greedy treasure seeker kidnaps Beni's sister and will only release her if Beni enters the most fearsome tomb of them all - the one belonging to Dormeuse, the Sleeping Woman.
Actively protecting her tomb, Dormeuse appears throughout Beni's exploration - taunting and challenging him. Sometimes her purpose is unclear. At other times she will actively protect, and, in doing so, will put roadblocks in Beni's way. Is she real .. or just an implanted artificial intelligence?
Sentinel: Descendants in Time is a first person, point and click adventure game, but uses keyboard keys for walking and a mouse for actions and 3D panning. Typical of the adventure genre, players will have many puzzles to solve, objects to find and use and different environments to explore.