In Travel Town (a popular mobile game), "free energy" can be used to help progress faster by completing tasks like merging items and clearing obstacles without waiting for energy to regenerate. Here are a few tips to get free energy in the game:
https://techyhigher.com/travel-town-free-energy/

1. Daily Rewards
Log in every day to claim daily bonuses, which often include free energy.
2. Level Up
Gaining experience and leveling up in the game rewards you with a full energy refill. Merge and complete tasks to gain XP.
3. Watching Ads
Look for opportunities to watch ads for free energy. These are usually available in the shop or during specific prompts in the game.
4. Special Events
Participate in limited-time events that often give out free energy as rewards for completing tasks or challenges.
5. Treasure Chests and Free Gifts
Open treasure chests, and claim free gifts from the store or on the map. These sometimes contain energy refills.
6. Friend Gifts
If the game allows it, interact with friends by sending and receiving energy as gifts.
7. Notifications
Enable push notifications to get alerts for energy-related offers or bonuses the game may provide.