This is my first game jam, and recently I’ve bought the FPS Engine for Unity on the asset store I just want to know if it would be ok to use assets like that as a base. Also I have old code from earlier project am I allowed to use them?
Apart from that you are allowed to use any game engine or framework, you can also use assets not made by you, but make sure you have the proper license to use them and crediting is of course encouraged! Making everything from scratch is not mandatory, but if you do you get to be extra proud of yourself at the end
This is the 2nd paragraph from the rules sections, so from my understanding it is okay!