Cant walk up stairs need a bit help more info inside.

i have some stairs made in blender with a ramp made but the problem is i cant make my model actually climb it falls down in the prossess of climbing,i use the third person controler that exists in unity for now
due to my model flying off the map in a small ramp with it i also modified its script to have the scale up to 100 gravity *1f
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If you got a better gravity model il appreciate it. It only needs crouch,walking,running and im still learning java so it will be a valuable lesson while at it.
I got the animations so no deal in other stuff while at it :3
thanks for helping ^_^.

Try creating an empty gameobject, adding a boxCollider to it and extending it diagonally up the stairs.

Raising the step offset would also help you move up the stairs.

Because if you have lots of cubes, they might be slightly larger than the step offset in height which is what allows you to go over bumps that are beyond the slope limit.