Might straight up be easier to go the route of making it a open source RPG game template, say under the mit license perhaps. Might incentivize more contributors too.
But realistically you should always be prepared to see the work through yourself, people tend to be more interested in joining project that are clearly going somewhere and likely t be completed.
edit: I also moved the topic to the projects category seeing as there's no resources here, yet. You can always create another topic later.
