All resources included in the Developer's Corner are completely free to use in both non-commercial and commercial games. This includes CGMV Plugins, miscellaneous CGMV resources, and outdated resources. I ask that if you do use a plugin or other resource found here, please give credit to "Casper Gaming" and include a link to the developer corner main page which can be found at http://www.caspergaming.com/cgmv/. Including this credit and a link back to where you found the resource helps others find useful resources for their games.
Want even more cool stuff? Patrons get many additional perks beyond what is available to regular visitors, such as a mention in the Thanks section, special Discord ranks, beta access to plugins, and more. Please check out my Patreon and become a patron. Becoming a patron also helps keep these resources free for everyone as well as allows me to put more time into making resources.