Training Dwellers

Once you have a stable resource base, start building training rooms. Each S.P.E.C.I.A.L. stat has a corresponding training room: Weight Room (S), Armory (P), Fitness Room (E), Lounge (C), Classroom (I), Game Room (A), and Luck Room (L). Assign dwellers to these rooms to improve their stats. Prioritize training dwellers for specific roles: high Endurance for wasteland explorers, high Strength/Perception/Agility for resource rooms, and high Intelligence for Medbays/Science Labs. Training takes time, so start early. Upgrading training rooms allows more dwellers to train simultaneously and speeds up the process.