Sandbox like system on Roll20?

Hello, I need some help. I'm in the process of working out a story for us and need some kind of sandbox system where you can create status values as well as pre-made dice yourself. We have only played Dungeonslayers so far and have not been on Roll20 for very long. So we don't know it that well. Thanks a lot

Roll20 was designed to be system agnostic so you can technically represent any system or play style here. Some things like customised dice are best supported by some of the subscription features but they aren't essential as long as you are willing to compromise or don't want to do anything too fancy with a custom dice set. Give it a go, games are free to make and run so the sky is the limit and if you run into specific mechanics/how to questions just ask on the forums (under the specific use forum will get the quickest response) :)