So all characters regardless of what system is in (D20 PF or SF) using the following rules: Uses d20 feat progression 1 every 3 levels Pilot skill is used to fire ship weapons you get bab as Pilot skill up to your Char Lvl. If do not have the gunnery feat cant get an iterative attack just one. No favor class bonuses still use d20 rules on multiclassing Taking craft graft feat then allows you to graft any graft using appropriate craft skill(undead, beholder, mind flayer, fugus ect.) Each has its own skill that you must invest skill points in You don't need craft feats but if they don't have costs to create double(so calculate what should with feat then double after finding the cost) Int increase is not retroactive Everyone is considered to have Technologist without skill bonus ( You are considered to be trained in any skill used against a technology-based subject. If the skill in question requires training to use even against non-technological subjects, you must still have ranks in that skill in order to gain the benefit of a Technologist. All characters are treated as having the following feats for the purpose of meeting prerequisites but cannot use their effects unless they specifically take them: Combat Expertise, Dodge, Point-Blank Shot, Power Attack, Starship Operation, Starship Gunnery Feat. If there are other feats that you don't need to have cause changes and are not on this list please tell me. Massive Damage Threshold Con score+2 per level or HD. Any time you take over that from any nonmagic damage source you have to make a DC 15 +1 for every 10 damage over the MDT you have taken. This is after DR or any reduction of damage and only counts when HPs are taken off over this number. While wearing armor from Starfinder the armor interferes with the AC boosts from magic and other systems trying to get the AC even higher than the armor grants. You can only have 1 type of boost of any kind of protection (abjuration school). The armor gives equipment and armor boosts so you cannot apply any more of those types as they don't stack.