: Yes. If you created the entire mod yourself, you can add or change the license anytime. If others contributed to the mod (including code, translations, or images), you'll need to either get permission from each contributor to relicense their contributions, or strip their changes out of the mod. | : Yes. If you created the entire mod yourself, you can add or change the license anytime. If others contributed to the mod (including code, translations, or images), you'll need to either get permission from each contributor to relicense their contributions, or strip their changes out of the mod. |