Eek, no. ElevenGame is nothing to do with Facebook other than that there's apparently a fan group there or something. All of the collaboration is being done on Slack, with git repositories etc. hosted on some private bits of elevengame.org. The immediate goal is to be able to release something that fills in the missing bits of what TS has released so there's a complete open-source Glitch. (...that won't actually be "Glitch" because TS is keeping the name and logo, but otherwise it should be the same give or take any other issues with the usability of other people's work.)