/SLASHPLAY
How to slow down or speed up the game in TF2
Type host_timescale 0.5 in the server console for half speed slow motion. 1 is normal speed and higher values speed the game up.
host_timescale
Sets game speed. 1 is normal, lower is slow motion, higher speeds the game up.
host_timescale <scale> Examples
host_timescale 0.5 Half speed.
host_timescale 1 Normal speed.
Arguments
scaleRequired- Speed multiplier. 1 is normal.
On SLASHPLAY
On SLASHPLAY the console accepts values from 0.05 to 10; outside that the server would stop answering or stall.
What it does
Set on the server and players follow it. Used for testing and for slowing demos or practice.
The game's own description: Prescale the clock by this amount.
Run it on your server
On a SLASHPLAY server, type it in the Console tab of the server page; the reply shows right under it. A value set there lasts until the server restarts. To keep it, add the line to tf/cfg/server.cfg. New to this? Start a TF2 server first.
Your own
TF2 server.
From $0.03 an hour, only while it runs. New accounts get 6 free tokens.