So you can toss Scifi window dressing on PF2e adventure paths and run them as SF2e. Simple as.
SF2e DMs can steal stuff from PF2e to reskin
That's crazy if that's their plan, because-
I think its less two games and more that SF2e and PF2e are set up to cannibalize from each other, and SF2e is set to cannibalize SF1e.
100% chance a PF2e AP will be set in Numeria and use items from SF2e as loot to force the GMS who buy books to buy the SF2e books
It depends who you mean by cannibalize in this context. But it could be worse than that.
The main problem with doing that is they risk turning Starfinder from it's own thing into PathFinder's version of Spelljammer. What's more, PathFinder already has it's own Barrier Peaks like region.
I don't mind them taking a successful base and building on it. Starfinder is interesting in part because there's a lot of things that would go on to be refined into solid PF2 mechanics. If it's just PF2 with "bow" replaced with "gun", then you could do that with any system anyway, PF2 included.
Sure the PF2 fans might buy it, but anyone wanting a sci-fi game will basically be SoL, or stick to the original rules. eg. One of the appeals to me of SF is that magic is capped at level 5, and guns beat magic when it come to straight damage. This (in theory) means casters wouldn't be just "zap" with different elements attached. There's no point in fireball when rocket launchers exist, and the lack of top tier spells like Wish removes game breaking complications. This got no end of whining on Reddit, but to me it's a positive. I don't play Shadowrun because magic overpowers sci-fi, making the sci-fi elements pointless. It's just DnD with neon lights. But people refuse to play any other cyberpunk setting.
In other words, if they make it a PF2 splatbook, they might get PF2 players on board, but they lose any reason for people who want a sci-fi game to buy it.
I haven't really seen anyone give a shit one way or another about SF2e except for around the announcement, and I believe that was just in this thread.
It might have been me.
the guy GMing it eventually quit because apparently the path expected the players to be murderhobos and our calmer, more diplomatic approach to the other colonies on the world were veering wildly off of the books' content so he was having to do a lot of work making things up from scratch despite having paid them for these premade adventures.
I had the same problem with Against The Aeon Throne. The first book was great, but was rediculously over tuned to the point where those that didn't powergame couldn't hit anything if played RAW.
I tried the adventure path again using Savage Worlds, and it went well. Space combat sucked because I didn't realise SWs space rules have never been playtested. But one unexpected problem is players kept getting rules mixed up. We were playing Savage Worlds, but they kept trying to apply Starfinder rules, level ups, etc.
After the first book, it goes off the rails a bit and expects very specific actions on the PCs part. A PF2 adventure path I wanted to run had a similar problem.
You also don't have the OGL ecosystem anymore, and the ORC Pathfinder 2e SRD hasn't gotten a lot of traction.
I don't think there was any third party stuff for Starfinder, and very little for PF2 outside of shovelware (or whatever the TTRPG term for that is). Maybe I'm not looking in the right place.
Treadmill math. Much like Starfinder's skill DC calculations, PF2 is balanced such that a level 1 PC fighting a level 1 monster has about the exact same chance to hit as a level 19 PC fighting a level 19 monster, so if your DM is picking out monsters matching the party's level, you'll never feel like you've advanced.
This also works backwards. In my PF2 campaign, the party (what's left of it) is at an inpass because they're overleveled. Nothing a few levels lower than them can hurt them. Even the druid is walking around with 26ac. Kobolds and goblins need a nat 20 just to hit them. Even then they do 2d4 damage, which is nothing to their 100+ hp.
This is good and bad. There's the feeling walking up to creatures that nearly tpk'ed them early game and chopping them to bits with ease. But the reverse problem is I can't challenge them without doing the treadmill thing.
Seriously, just play one of the non-d20 Star Wars instead.
At least you didn't suggest Traveller.