+ edf 4.1, 2017, first three if you really want

+ ge 2 and 3

+ toukiden 2

also EX troopers, in a much more traditional PSO way

also birth by sleep

worth playing:
mhfu
mhp3/3u
mh4u
mhgu
mhw + i
mhr + s

also file #2

also portable, universe, and zero. pso2 seems more like a traditional mmo? at least since new genesis