in the meantime:
the bundle will end in approx 2 hours, its the last chance for all submission to take part in the Ultimate Of 300 Bundle (four, three or two bundle with 130 different indie developers all over the world involved with over 300 games submitted within not Even a week. Great Job Guys and Ladies i wish us all best luck and ill let yall here know if ever tigerJ would be up to support us again, also i really love his streams a grea texperience, check it out if you can always on saturdays https://www.twitch.tv/tiger_j
best regards & peace 
https://itch.io/jam/ultimate-300-bundle-submissions
/EDIT:
Detailed Description about Co-Op Bundles and about using Gamesjames for Bundle Submissions in case there are still some qustions left :)