Max Plasmid Slots Achievement in BioShock 2 (Korea)
Max Plasmid Slots10
Fully upgrade to the maximum number of Plasmid Slots.
How to unlock Max Plasmid Slots
As you earn ADAM you will be able to buy upgrades and slots through a Gatherer's Garden. Once you progress and earn more ADAM, you will be able to upgrade your plasmids and buy new slots. The last slot is unmissable as it's a story related requirement.