Starfinder If Starfinder more compatible with PF1 or PF2?

[fjw70]

Or is it like SW Saga that had stuff from 3.5 and 4e but wasn’t truly compatible with either one?

 

[Morrus]

Closer to 1E, but not fully compatible with either,

 

[The Crimson Binome]

It's exactly like Saga Edition. You can see how it evolved from the previous edition, but the following edition went in a different direction.

 

[CapnZapp]

PF2 is completely different from PF1, so whatever the answer is, it isn't "compatible with PF2".

 

[Robyo]

I don't know about PF2, but I've used PF1 monsters in Starfinder without any problems. Barely any conversion needed, except to split AC into KAC and EAC (with EAC generally 1 or 2 points higher). There's a few other discrepancies, but it's more-than-likely the players will have no idea you're not using an "official" Starfinder foe.

EDIT: for accuracy.