The following graph contains playercount information from January of 2020 to today. As you can see, in March 2020 we went from 45.063 peak players to 61.933, with an average playercount increase of 24.805 (february) to 39.880 (last 30 days). This highly correlates with the date of imposed quarantine in multiple countries.
Not enough? See the peak point on the following graph.
The weeks of the increase to that peak point are the same weeks coronavirus quarantine was imposed in various countries. I couldn't find graphs/quarantine start dates for other countries but here's a graph for Europe:
What I'm trying to say is, garry's mod (and thus logically PERP) benefited from an increase in playercount thanks to corona. So if you wanna keep PERP alive, we should have a biological weapon development team to release a new pandemic whenever we run low on players from switching to evocity and not doing an epic paramedic rework.

Not enough? See the peak point on the following graph.

The weeks of the increase to that peak point are the same weeks coronavirus quarantine was imposed in various countries. I couldn't find graphs/quarantine start dates for other countries but here's a graph for Europe:

What I'm trying to say is, garry's mod (and thus logically PERP) benefited from an increase in playercount thanks to corona. So if you wanna keep PERP alive, we should have a biological weapon development team to release a new pandemic whenever we run low on players from switching to evocity and not doing an epic paramedic rework.