3D Gravity/ Jumping

I’ve made a demo for a maze like exploration game, however I felt that It would be a good idea to give the player character gravity, as to incorporate more advanced level design.

I have tried to look up tutorials for this, however the tutorials I found either didn’t completely answer my question, or was using a Pandako’s extension, which I’m not using.

I also tried looking for answers on the forum, and although I did find a mention of a 3D physics extension, no link was given.

is the 3d physics extension if anyone needs it.

Its a bit glitchy and you can report issues to the github, or pull request for suggestions of features you want.