Thank you for the help, I moved to both directories; /opt/ then home/user but still got the same permission denied error. Also I got permission denied when trying to delete the folder (Homeworld) back from /opt/. I was able to delete it from home/user however. No idea what to try now, any help at all would be awesome.

EDIT: I got it. After using chmod to get permission on the "homeworld" file using chmod g+w homeworld thats after cd'ing to home/user/Homeworld I was able to run using ./homeworld.

Now I have Homeworld on my N900! Expect feedback.