I used the "stone effects" system. There are two options, one with the chunks of rock that get trowled on and install is more involved. The one I used is a paint with sand type material in it. You roll it on. I think the steps are, clean it really well, paint, then seal. It has help up fairly well for 3 years, but I do have some pealing. This is due to carpet that was glued down, and I don't think I got it all off. I would recommend the product though, as it is a fairly easy job, and you can pick from lots of colours.
This stuff
https://www.rona.ca/en/coating---sto...-stone-coating