BioShock
51 Achievements
1,100
15-20.5h
Maxed All Tracks
The player has purchased every slot in all four Plasmid and Tonic tracks
50
How to unlock the Maxed All Tracks achievement in BioShock - Definitive Guide
As you start the game with 2 slots already unlocked in each track, you will only need to purchase an additional 4 slots for each from Gatherer's Gardens, making 16 in total.
You will need a total of 1360 ADAM (available from Harvesting or Saving Little Sisters), not 720 as previously stated, broken down as follows:
4 x Plasmid slots @ 100 ADAM each = 400 ADAM
12 x Tonic slots @ 80 ADAM each = 960 ADAM
For this achievement you will need 4 of each type so you will need a total of 720 ADAM.
A way of earning more ADAM is to harvest little sisters but this will mean that you will miss out on the achievement for rescuing all the little sisters. If you do rescue every little sister, you will have enough ADAM to buy all of the upgrades by the end of the game.
Go to all of the Gatherer's Garden vending machines during the course of the game and purchase the Plasmid (100 ADAM) and Tonic (80 ADAM) slot upgrades. Make sure you don't spend too much ADAM on things like Health/Eve upgrades or extra Plasmids, or you might not have enough left to finish this achievement. You have unlimited lives in the game, so the health/eve upgrades are not that helpful anyway.
This achievement is highly missable!
Plasmids and Tonics have a finite number of slots that you can apply them to. There are 4 Plasmid slots and 12 Tonics slots. You must purchase extra slots from Gatherer’s Garden stations with ADAM. If you are following this guide and Rescuing all Little Sisters then you will earn a grand total of 3,080 ADAM. The 16 slots that you will need to purchase for this achievement will cost you 1,360 ADAM. Therefore, it is critical not waste ADAM on Plasmids, Health upgrades, or EVE upgrades that you may not need. You will need most of the remaining 1,760 ADAM in order to purchase Tonics for the “Tonic Collector” achievement.