The most dangerous tombs to explore in the world are the eighty-five Tastan Tombs. The most dangerous of all is Tomb thirty-five, with the only person being able to make it out alive being Ramirez, and he just got lucky. But he told many tales of what he saw inside, like The Sleeping Woman who was laid there.
Well, Beni had better hope he gets as lucky. He's been called to Tomb 35 by Doba, who has his sister, Carrie, hostage. He'll only let her go if he explores the tomb. So, with no other choice, Beni ventures into the tomb.
Sentinel: Descendants In Time contains examples of:
- Advanced Ancient Humans: The Tastans were a really advanced society, to the point the Tastan Tombs have holographic AIs protecting them, and contain recreations of the places the deceased was most attached to in life.
- Armor-Piercing Question: Dormeuse continually asks Beni what the true purpose of Tomb 35 and its worlds are, dropping vague hints along the way. He figures out by Argannas that the tombs were designed by the Tastans to get revenge on modern-day humans, since the genetic treatments failed to affect the Tastans and left them to die off.
- Bald of Evil: Doba. Except not really.
- Convection Schmonvection: One of the worlds, Corabanti, is a series of islands set in an ocean of lava with an active volcano, but none of it is harmful to Beni.
- Creator Cameo: In Maru, an airship bearing Detalion's logo can be seen circling the area.
- Damsel in Distress: Carrie, Beni's sister. Doba is holding her hostage to make him explore the tomb. Subverted in the end.
- Durable Death Trap: Beni knows Tomb 35 is this going in, and believes Dormeuse is a sentry program meant to eliminate intruders. She reveals towards the end that her worlds are traps.
- Famed in Story: Ramirez, the only person to make it out of tomb 35 alive. A.k.a., Beni.
- First-Name Basis: Some ways in, Dormeuse asks to be called Tamara instead, as Dormeuse just means "Sleeping woman" in an old language. Beni doesn't catch on for a while.
- Floating Continent
- Sanselard plays this straight.
- A variant in Maru, which consists of huge stone-and-metal constructs floating thousands of feet in the air.
- Four Eyes, Zero Soul: Doba again. Except not really, again.
- Ghost City: Argannas, the tomb's final world, which was also where Dormeuse spent her adulthood.
- Lady in Red: Dormeuse, the AI guarding the tomb is always in a red dress.
- Port Town: Eska, most of it built inside an enormous shipwreck.
- Precursors: The Tastans. They weren't the first, though, as Beni lists two other, older sets that came before them.
- The Reveal: At the end of the game, it's revealed that Beni is Ramirez.
- Transhuman: Humans recently created genetic treatments that allow people to live than a normal person would. Beni is 78 years old, despite sounding like a 20-year old. In the same conversation, it's revealed that the average lifespan in Beni's time is between 500 and 550 years.
- 20 Minutes into the Future: The game takes place in a pastoral Earth 1900 years from the present day.
- Solve the Soup Cans: Each of Dormeuse's worlds are littered with time-consuming, complicated puzzles that often have to be solved multiple times. Beni starts to catch on halfway through that they might just be busywork to keep him distracted.
- Songs in the Key of Lock: Some of the game's puzzles are this.
- Underwater City: Goda, one of the realms in the tomb. It was known for its underwater gardens, lights, and sounds.