What exactly is a particle simulation? The search function didn't help me.

Okay, I did and got answers for everything except the simulation and wether some aliens or reptilians adhere to human religions.

Is there something after death? An afterlife?

Do reptilians have many different religions? What would be the basic tenets of the most popular reptilian religion? Are there some reptilians or aliens that adhere to human religions?

Is this universe just a simulation?

Do reptilians play video games?

Do reptilians listen to music?