Posting to say that I've played around with this and it works insanely smoothly. I didn't host so I can't say what the experience was like to set up a server, but as a player, you literally open up firefox/chrome, go to a URL, and play dwarf fortress. From a player's perspective, here's some tips to other players:
- I strongly recommend having a voice chat going with the other players because a pretty high degree of co-operation is required not to shoot your fortress in the foot,
- Sparing use of the "\" key, which disables multiplex mode, can brute force through any menu that doesn't work, but WARN PEOPLE BEFORE YOU PRESS IT; it kicks them out of their menu and if they press any buttons while you're sorting out whatever you're sorting out, there *will* be issues,
- Try to co-ordinate 'pause game' time. Some things are much easier to do while pausing (mainly, tracking down and viewing individual dwarves), whereas some things can't be done at all (like waiting for someone to dig out a room so you can put workshops in it). So try to keep at the back of your mind what you'll do when someone else has to pause so that you aren't sitting around bored,
- Pretty much constant communication is key. If you aren't telling people what you're doing, it's easy to massively over-produce, say, doors (if two people notice a door shortage and both try to fix it) or accidentally use up all of your coal or something.
- there's no mouse support, but you'd be forgiven for not noticing.
-ENABLE AUTOSAVING