So I've been thinking about starting an RTD, and I'm trying to decide between settings. I'd love to run one based off Halo: ODST, with the players running around abandoned city streets, fighting aliens and trying to get out as everything goes FUBAR. The game would be pretty simple with standard equipment taken from the game. New players/player death could be easily handled by more ODSTs waking up after blacking out from the crash.
I thought of a way to implement a game with several players far apart in the in-game world, and it would be fun to try to run. Basically, the RTD would be run "turnless" as players are separated by great distances, with turns made for individual players. Once two players move into the same area, they get locked into the same "time", and these players would need to have their collective actions in before their turn is made. The setting that seems to fit this best would be a zombie/apocalypse survival game, so one player can be just arriving, while several players are fighting a small horde of zombies, another player is building a base, two more are in a duel, etc., and only the actions needed are from the players in direct contact with each other. In my example, the game would be like several mini RTDs broken up between the new arrival, horde slayers, base builder, and duelists.
The problems that I see with this would be activity of players and sheer stress load on the GM. Activity could be regulated by something like food or the risk of getting killed in your sleep (or the GM, ie. only posting once a day).
If enough support is gathered, I could probably GM a Last of Us/general zombie RTD using the "pseudo-turnless" model above, probably starting out with four or so players to test feasibility and get my feet wet. any ideas?