To increase your vault's happiness, ensure that dwellers are assigned to jobs they like, provide sufficient food and water, and build recreational facilities like the game room or lounge.

If a dweller gets sick, send them to the Medbay for treatment. Make sure you have enough resources to produce Stimpaks to heal dwellers and keep your Medbay staffed with skilled workers.

Dwellers can improve their skills by working in specific rooms that match their strengths. You can also train them in the training rooms, which enhances their skills over time.

To manage resources effectively, regularly monitor their levels, avoid over-expanding your vault too quickly, and upgrade resource rooms to boost production. Balance food, water, and power consumption with production rates.

When raiders attack, make sure to have armed dwellers stationed near entrances. To handle the attack, follow these steps: 1. Equip your dwellers with weapons. 2. Position them strategically within the vault. 3. Respond to the alarm in a timely manner. 4. Ensure your dwellers are trained to minimize casualties.