: Players earn coins and rewards for every enemy defeated.

Units are categorized by rarity, which dictates their base power and utility in the field:

: Basic units like Rangers, Freezers, and Farmers.

: High-tier units like the Overlord or Demon, often requiring specific event participation or advanced resources to unlock. 5. Tactical Considerations

: Specialized units such as the Jester, Turret V2, and Golden Railgunner that provide significant tactical advantages.

: Players can generate and enhance new attacks to counter stronger enemy variants as they progress through different historical and fantasy-themed levels. 4. Unit Tiers and Specialization

While the game features heavy automation, players must manage to ensure their defense keeps pace with enemy scaling. The integration of prestige or reset systems —common in the "Idle Defense" genre—encourages players to reset their progress in exchange for permanent stat bonuses, facilitating deeper progression into later stages. Idle Defense Legend: TD Game - Apps on Google Play