CC BY 3.0 Questions

[Mathew]

Hello, I have some questions about http://creativecommons.org/licenses/by/3.0/ this license, since I found many resources over internet, licensed under this license.

And here's my question, because I just want to make sure, if I will put authors name's in my credits game section, it will be enough? Most likely I won't have paid game version, but even if I would, on this license website its said, that

to make commercial use of the work

..that I will be able if I would change my mind one day.

Thanks for clarifications!