I can't say if this is real or not but I doubt its a LARP. This is either true or some kind of psyop. I highly doubt its a prank though. Here is the basic idea is:

1. Benevolant aliens are trying to sandwich the evil cabal on Earth to liberate the planet but the Cabal have some sort of mega bombs (toplet bombs) and strangelet bombs (bombs that turn ordinary matter to strange matter) they are using to hold the people of the world hostage so these aliens have to move carefully. They make progress everyday. They work below and above the Earth's surface to sandwich the cabal in. Overall, there are at least millions of aliens in cloaked spaceships that are all somehow connected to liberating Earth.

2. As soon as the aliens feel they can save the world without the toplet/strangelet bombs going off, they will do so. The world will change overnight but the first thing that will happen is that the aliens hijack the satellites and broadcast the arrests of all cabal members on life TV. Later, humanity will decide what to do with these cabal members as a part of the healing process. Also, banks will be shut down for 2 weeks to prevent the cabal from using their secret weapon: money.

3. Within months, money will no longer be used and instead replicators will be used to produce anything we need at anytime for free. We will also have massive technology dumps putting us way into the future (ie Anti-gravity vehicles).

4. The exact date of the event will be a surprise to anyone but it can happen as early as today and as late as 2025. We can drastically help speed up the process by meditating, being cheerful, and spreading positivity because this greatly destroys the power of the dark forces in the folds of time/space. There is also a planetary meditation session every Sunday at 12 noon EST. Also, the cabal is afraid of this information from spreading because it would give the people hope which is a positive emotion that weakens the cabal.

5. Some changes will be a massive shift in consciousness towards good, end of cabal, end of money, better treatment of animals, quantum evolutionary leap, and many other things.

Here is a youtube video explaining it all:

https://www.youtube.com/watch?v=A2_GFi_G2z4

Official website for the Event:

http://2012portal.blogspot.com/

Edit: votl claims the event will happen in less than a year:

https://twitter.com/KibBitzLaw/status/887108068689018880