changes and additions to the core pathfinder rules, as well as character creation rules:
guns – Commonplace, but no advanced
power armor and tanks – use constructs & gun rules for this, see below
Ley Lines, nexus points – +dc or +CL for spells, chance to open gate at nexus
are expanded to cover psionics as well.
Races – All core races allowed, all featured races except drow/drow noble allowed, all uncommon races except merfolk, strix, and Svirfneblin allowed, and all psionic races allowed. Alternate heritages (such as aasimar or tiefling) need GM approvall
Classes – All core, base, and psionic classes allowed. All PFS legal archetypes allowed.
psionics – are allowed per the psionics unleashed book
skills – 2 new psionic skills (per psionics unleashed), and the UMD and spellcraft skills
feats – all psionic feats, plus craft steam machine. Leadership is not allowed because it’s broken.
Alignment – Either all non-evil or all non-good. No fighting other PC’s, regardless of alignment.
New skills: http://www.d20pfsrd.com/psionics-unleashed/skills
Autohypnosis (wis, trained only)
Knowledge (psionics) (int)