The multiplayer server starts on demand. If nobody has played for a while it is asleep, and
waking it can take about a minute. Meanwhile you can fly solo; the game joins everyone else as
soon as the server is up (the bottom bar shows OFFLINE until then).
Add ?room=yourname to the address to play in your own room. Anyone who opens the
same address joins you. Letters, numbers, - and _ only.
Tabs share your saved name, so they would be the same pilot. Add ?profile=2 for a
second identity: open a second
player. Put the windows side by side; browsers pause games in hidden tabs.