There are plenty of IRC clients that don't require a specific browser. For in-browser clients, I recommend
Mibbit. Set the "IRC" pulldown to Esper and the channel to #particracy.
Of course, it only works if others are there... I logged on at the time of my post earlier, but left after a few hours since no one else was there. (One other person showed up as online when I joined, but disconnected soon afterwards.)
Iqembu Sokusebenzisana Yeningi (Coalition for Democracy) in Ibutho Izulu
Mugenkai in the Imperial Federation of Sekowo (inactive)
Community Communist Congress in the Republic of Ikradon (obsolete)
Cosmopolitan Unity Party in the Republic of Sogona (P2, RIP)