Two issues

[MateuszS]

OK, I have two questions:
1. Assuming that I want to create slaves from my own species - is caste system the only way to do this?
2. I managed to accomplish synthetic evolution - from then every conquered organic pop is purged. Is it intended?

 

[Fourthspartan56]

1. Assuming that I want to create slaves from my own species - is caste system the only way to do this?

Yes, caste system is the only way.

2. I managed to accomplish synthetic evolution - from then every conquered organic pop is purged. Is it intended?

I haven't a clue.

 

[MateuszS]

Somehow my new "slaves" got exterminated, but it seems that I had messed with internal policy and species rights and I wasn't able to let them live. However, self modified pops eem to count as different species that I can enslave nevertheless.