Researching The Prison Unlocks This Achievement.
- This Also Locks The Rehabilitation Center For The Playthrough.
You Can Get Free Techs From Some Events, Like "Spider Infestation".
- This Randomly Unlocks Two Free Technologies, Which Can Override The Rehab Center Being Locked Out.
- With This I Was Able To Get Both Prison And Rehab Center In The Same Playthrough!
Good Luck!
*Side Note*
If You're Lazy And Dont Want To Play Through Twice, You Can Save Beforehand, Then Reload The Save To Unlock The Other Technology.