1. If your team members join the jam, it'll make the jam look more impressive by having a bigger number of people joined. 馃槈
2. Yes, to properly give out prizes and rewards to team members they should be added as admins to your game project on itch and as authors on gd.games. You can add admins on itch and change the authors of a game on gd.games after the submission deadline, but having them added will help us when giving out prizes/crediting creators.
