How to multiclient (no download required)
This is a method than still works to open 2 clients of twelve sky 2 at same time. (Aeria version)
Open ur launcher from desktop n just double click "start game" fast enough.
Should open 2-3 clients at same time switch between them using alt+tab if your computer is not fast enough you might experience frequent lag spikes.
This method might require you to create pc-lag so the launcher allowes u
to click it more than just once (open browser msn or whatever program u