There are a total of 139 weapons in the game, most of which can be obtained by exploring the wasteland or normal cards from Lunchboxes. Rare and Legendary Weapons may be obtained from Legendary Dwellers or as Rare/ Legendary pulls from Lunchboxes. Common weapons are colored green, rares appear as blue, and Legendaries appear as yellow.
Weapons are very important in the game. They'll ensure that your explorers can win most encounters in the wasteland, allowing them to stay longer and find more CAPS and loot. Equipping weapons to all your dwellers allow them to defend themselves against invasive threats and raids. As you gather more weapons in the wasteland and send out more capable explorers, you'll soon be able to equip your dwellers with potent weapons and you can even equip your most powerful weapons to the two of your best dwellers to guard the Vault Door as the first line of defense.