A. 1. Focus on strategy: Develop a solid strategy to progress through levels without relying on purchases. Prioritize upgrades and resource management. 2. Replay levels: Go back to earlier levels to earn more resources and prepare for tougher challenges without spending money.

B. 3. Join online communities: Engage with other players to share tips and strategies for progressing without spending money. 4. Participate in events: Take advantage of in-game events that offer rewards to help you progress without purchases.