You could make the research facilities require a new racial trait. Human and regular AI empires would all take this trait, neutrals would not. No more research possible, except through trade, which would be rather slow.
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Give them a raacial trait and a special research fac that only generates 1 point of research (So the AI will select it when filling out the research facility homeworld requirement) and also generates standard resources they can use
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This is unecessary. If there are no research facilities available to use on the HW, mineral facilities will be used instead.
[ March 08, 2004, 18:26: Message edited by: Imperator Fyron ]