I downloaded on linux, it said it was on linux but, it just dousent work
What do you mean "doesn't work"?
Does it not run when you double click it? If so, did you make sure your computer has marked the Linux as an executable? You can search up "Linux <insert OS name here> mark file as executable" in a search engine like Google to find the steps necessary. On Ubuntu, I think you can mark a file as an executable by right clicking it in the file browser and there should be a checkbox that says something like "run as executable".
Edit/Side-note: Please don't down vote my replies trying to help you. It is disrespectful and makes the comments harder to find, which in turn makes it harder for people with similar problems to find the conversation(s) and potential solutions.