

Each SPECIAL attribute increases dweller efficiency in various rooms, during combat or when performing certain tasks. SPECIAL in Fallout Shelter works slightly differently than in other games as Skills do not exist in this game.

2.5 + (END Number * 0.5) Hit points are not retroactive. Here is the equation to calculate your dwellers hit points. Endurance can be increased beyond 10 with outfits that have an END number resulting in more hit points per level. A dweller with END 1 will gain 3 hit points per level where a dweller with END 10 will gain 7.5 hit points per level. This determines how many hit points (health) the dweller gains per level. Endurance (END so I don’t have to type Endurance every time) is upgraded via the Fitness room. The higher the strength the less damage they take. This determines how much damage the dweller takes. Strength is upgraded via the Weight room. If you are trying to get the dweller out the door fast, max out at least Strength, Endurance, and Agility.

This is important to remember for Endurance. I have done my own personal testing with max stats a dweller at level 1 should reach level 50 between 3 - 5 days in the Wasteland depending on RNG events. The dweller becomes almost completely self-sufficient with maxed out S.P.E.C.I.A.L stats allowing you to leave them out for days with almost no supervision. To best maximize your dwellers survivability in the wastes, max out all of their S.P.E.C.I.A.L stats.
