How-to Enable Gravity (version1.19)

i saw many forums to make gravity but they do not work.
HELP NEEDED.

You mean gravity in a platformer game?

Yes in a platformer

There are lots of great platformer engines out there in the Forums, from
AWC’s platformer engine,
Pumpkinhead’s platformer engine,
HerbertTheBird’s many platformer games/engines,
and many more!