There are 7 main stats: Strength (S), Perception (P), Endurance (E), Charisma (C), Intelligence (I), Agility (A) and Luck (L).
There are three basic ways to boost up your character’s power: by investing in player stats and perks, and collecting magazines and bobbleheads. Check out our list of unique / rare weapons in Fallout 4 with special bonuses.