[Taqwus]

Hmmm.

* There's happiness Ratings. I don't recall the happiness levels immediately after a surrender, but (in 0.56, haven't checked in 0.99) a 'gifted' planet seemed to join as 'Angry', which equates to a production penalty IIRC. If these planets started as 'Rioting'... *shudder*.

If you've previously genocided 20 million of their ilk, they probably SHOULD be rioting when they transfer to your "control"; at least the ones not facing immediate annihilation by your orbiting fleet of planetary bombers... Xenophobic and Beserker races should also, arguably, not go quietly into the night.

FWIW, it may make sense for rioting planets to *lose* facilities/population, and to be treated as enemy. So if you're the Foo, and some of your outworlds get so pissed off at you for whatever reason (say, you're letting them being raided and not bothering to defend them) they may be labelled as "Foo (Rebel)" and act independently, perhaps even attacking loyalist worlds... Right now [0.99], it appears that rioting merely halts production...

* Along the same lines, ships should probably have loyalty Ratings. Perhaps not everybody obeys the call to surrender, say.

* Maybe a 'neutral' race, or one that's simply been pushed to the brink of annihilation or otherwise sees it cannot cope on its own, should offer to surrender to empires that are a) powerful enough to help, b) nearby, and c) well-liked. Basically, voluntary assimilation. In that case, maybe you should be allowed to take advantage of the 'special' tech they have, at least at their worlds -- although this is probably a better use of subjugation/protectorate than surrender.

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-- The thing that goes bump in the night