/SLASHPLAY
How to change gravity in TF2
Type sv_gravity 400 in the server console for low gravity, so players jump higher and fall slower. 800 is normal.
sv_gravity
Sets world gravity. Lower values make players jump higher and fall slower.
sv_gravity <value> Examples
sv_gravity 400 Half gravity.
sv_gravity 800 Normal gravity.
Arguments
valueRequired- Gravity strength.
What it does
Affects players, projectiles and physics objects. Low gravity is popular on fun servers and jump maps.
The game's own description: World gravity.
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.