9 skills in The Last of Us Part I.
Crafting Speed
Cuts the time Joel takes to craft items from his backpack.
Healing Speed
Lets Joel apply health kits faster.
Listen Mode
Hold the button to crouch and see nearby enemies outlined through walls; allies show a white diamond above them.
Listen Mode Distance
Widens the radius in which Listen Mode reveals enemies through walls.
Maximum Health
Raises Joel's maximum health. Buying a level while hurt also refills his health completely.
Melee Upgrade
Straps a blade to a pipe, baseball bat or 2x4 so its hits kill in one blow until the blade breaks.
Shiv Master
Level 1 lets Joel stab a clicker that grabs him if he has a shiv. Level 2 stops a full-durability shiv from breaking when used this way.
Weapon Holsters
Adds a second quick-swap slot: one holster for a pistol and one for a long gun.
Weapon Sway
Reduces how much Joel's aim drifts while he holds a gun up.