The ATBABA Death Game

This particular round of the Death Game takes place a decade before the current year and is considered round 2 of this debacle.
This, although a prologue, brings up a few questions as to how the timeline for this series works. How exactly are players dying, reviving, and have supposedly prevented themselves from aging?

The Player List

The list of players is that from 0 to 15 in roman numerals for 16 total players.
For convenience and readability, I have converted the roman numerals already.
Known players with their numbers and current status are below:

Number Name Status Team
0 Lorelai Amber Willow Alive 0
1 Olive Summers*
2 Zoey Coleman*
3 Cassidy Orchid Eliminated
4 Melanie Atlantic Eliminated
5 Otto Karpf*
6 Ludwig Kaczynski*
7 Lily September*
8 Sarah Inunaki*
9 Allison Orion Alive
10 Alexander Valentine Revived?
11 Yves Vivian Alive
12 Faith Valencia*
13 Adrianne Bright*
14 Alexandria Zygmunt*
15 Molly Lucas*

The Sacrifice List

Sacrifices, as outlined in the task list, are necessary for the game to continue. Why? The answer to that escapes me. So far to my knowledge, it's just cause it's "part of the pre-game" I suppose. The following list is a list of every known sacrifice for this round of the game.

Number Name Status
1 Olive's Mother Deceased
2 Olive's Father Deceased
3 Cassidy Orchid Deceased
4 Jennifer Kokovin Deceased
5 Angelica Flores Deceased
6 Alexander Valentine Revived?
7 Phoebe Foster Deceased
8 Cal Vaitkus Deceased
9 Ruby Vivian Deceased
10 Melanie Atlantic Deceased