Tonic Slot
From BioShock Wiki
- For locations of which machines sell this upgrade, see List of Gatherer's Garden prices.
Tonics, unlike plasmids, are passive abilities. There are three tracks (types) of tonics.
The player begins the game with two slots in each track. Each track's slots can be extended separately by purchasing different slot upgrades from Gatherer's Garden machines found during the exploration of Rapture. Each of the slots cost 80 ADAM, and like plasmid slot upgrades, the price does not change. Also like the plasmid slot line, the maximum is six per track. On the Xbox 360 and PS3 versions of the game, an achievement and a trophy is unlocked for acquiring all of the slots in a track.
