arche seleukeia is awsome to play with but it demands the kind of menthal preparation and attention to detail that i think i no longer have :X not to mention the lack of luck

whenever i played arche seleukeia i always imediatly left markanda and alexandreia machioteia (or whatver it´s the name) rebel
leave parthia also and start building up my economy for the reconquest my main goal is always the western mediterranean to remove the ptolomaioi from side and from cilicia then imediatly and automathically build up whatever i can must and destroy the pontians and secure mikra asia place forts on the passages and have my western boarder secured then place forts around hayasdan in the mounta passes create a network of working watchtowers and redevelop the economy (mainly beteween seleukeia and babylon and in the secure places of my kingdom) to raise a mine or to raise an army ... the mine will allow you to have an army later on while an army allows you to conquer early on and defend better so it´s your decision

on the east i always go for stone walls that will keep the phalava away until you´re ready to amass an army of pantadipoi (i use them to keep the squalor down and control the population) and send them against the phalava

that pretty much sums up my starting experience as arche seleukeia (and by starting i mean until 268bc)