Weapon Sway is a two-level Survival upgrade that steadies Joel's aim. Less drift helps most with the bolt-action rifle and the bow, where you hold aim before taking a single shot.
Crafting Speed
Cuts the time Joel takes to craft items from his backpack.
Healing Speed
Lets Joel apply health kits faster.
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.