Absolutely! Although our campaign is UK based you can back us from anywhere in the world. You will be backing us in British Pounds and that is important to keep in mind as it may be worth more or less than your local currency. If in doubt use this link to compare your local currency to British Pounds:
Yes! Worlds of Magic will have, at least, a hot-seat mode and (eventually) a PBEM mode. We want to do even more with it than that. However, both the timing of the PBEM mode and other multi-player additions are somewhat dependent on stretch goals.