This might be a carry-over from es1.  ok so I’m earlier in the game on tech and craver beat me to this planet with special resources I wanted.  So I use manpower option to invade the planet and eventually conquered it and gained control over planet.

But then I discovered a bigger problem.  I tried to isolate them to a planet and 1 system hopefully.  But I discovered the population unit spread from 1 connected system to another I think.

And these craver has nasty depletion element that ruins my game and eat away my planets’ value.

Is there a way to kill them off ? I want them out of my civilization cuz they bring no good. 

I originally want to wipe out their population by orbitial bombardment but that wasn;t an option I saw, only ground invasion was available.

Is there a way to take a planet ,wipe out the enemy population if I don’t want to take the race into my civilization like in case of craver?

ok nevermind, i discovered a solution . inconvenient but nevertheless a solution....

I've had a number of issues with this as well. Here are my thoughts related to this: https://www.games2gether.com/endless-space-2/forum/66-game-design/thread/21365-cravers-approval-and-government

Please let me know what your solution was.

sure no problem. really simple. i purposely create unhappiness ,the latest population unit on a planet would be first to go away. then  it randomly pick a new unit type for next growth cycle threshold.

now reason i said inconvenient is you  have to scrap building and that cost dust and time...

endlessfan12 wrote:

sure no problem. really simple. i purposely create unhappiness ,the latest population unit on a planet would be first to go away. then  it randomly pick a new unit type for next growth cycle threshold.

now reason i said inconvenient is you  have to scrap building and that cost dust and time...

Yeah, having to scrap building is fun and important. I like having to manage my systems that way. But only really a minor fix to bigger issues.