On GitHub, I can't seem to figure out how I can fork a repo twice into one account.
So there is a repo from Bob/CoolFramework
I fork it to Jeremy/MyShooter and start to build a game
Now I also want to fork it to Jeremy/MyRPG to build another new game
When I try to fork CoolFramework a second time, it just takes me to MyShooter.
So the options I can think of:
A) I'm not using Git in the right way
B) It's not possible on Git
C) I just couldn't see the option on Github
In your case, I would suggest going with submodules. However to answer your exact question, here's how you should proceed.
Start by creating Jeremy/MyShooter
and Jeremy/MyRPG
on Github. Keep them empty.
Clone your origin project on your system, twice, giving it different names
$ git clone http://github.com/Bob/CoolFramework MyShooter
$ git clone http://github.com/Bob/CoolFramework MyRPG
You now have 2 different local repos pointing to the same origin. You should remove the origin and point to yours as a remote:
$ cd MyShooter
$ git remote remove origin
$ git remote add origin http://github.com/Jeremy/MyShooter.git
$ git push -u origin master
Don't forget to do the same for MyRPG
From the sound of things, you are using a framework within a game you are creating. If you are just using the framework and not changing it, create a new project for your game and include the framework project within it as a sub-module.
Assuming you are not modifying the framework, you should not be forking it. Forking a project is for modifying (often with the intent of submitting your fork to be merged back into the source project).