Hello!
STEEM-POCALYPSE is a survival game. You must sign up before the game begins. When the game begins, there will be a scenario and options to choose from. You must pick a single option and then wait to see the results. You must reply to this post within 24hrs of it being posted. If you do not reply in time for one post, your game is over and you will have to try again next season.
Each single day of gameplay takes two real life days. Days are divided into two rounds. One round on each real life day, before moving on to the next.
So, say, on Monday, Day 1 Round 1 is posted, on Tuesday, Day 1 Round 2 will be posted. On Wednesday, Day 2 Round 1 will be posted, on Thursday it will be Day 2 Round 2, and so on and so on and so on...
You must manage to eat every two game-days, meaning every four real life days, otherwise, you will starve to death, and you'll have to try again next season.
I would highly suggest going through and reading the game posts for the last game, starting with Day 1 Round 1, and working your way through it to get a better idea of how the game functions as a whole.
I hope I've helped to answer at least some of the questions that you have about the game. If you have anymore, please, by all means, let me know and I'll be more than happy to answer them to the best of my abilities. :)