Furniture for a sloped patio?

My patio is steeply sloped away from the house. I rent so I cannot change the patio. What can I do to make this a use-able space? I want to set up a grill with seating area or table and chairs. There is a low retaining wall at the end and I figured the grill would have to go there since that is the flattest area.
Update: To give an idea of the slope because I can't get a good picture of the whole patio, this is a picture of a small table up by the house.
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