The Summoner Game is kinda flaky at the moment, and it feels a bit weird distributing it when it's not really done, but it's on GitHub now:
To play it, import SummonerInitEasy.em
Whichever presence imports it becomes the game host. Any presence that sends a 'touch' request to the game host gets the game script automatically run on their entity.
Feel free to... uhh... try it and drown in error messages...?
Kotaro