Early Game: Quickly eliminate zombies to farm Sunlight. Use accumulated Sunlight to upgrade attack power, attack speed, HP, and other buffs—this helps stall zombie advances and prevents your defenses from collapsing.
Mid/Late Game: When encountering high-HP or fast zombies, prioritize attack upgrades. Key Tip: Balance Sunlight spending—over-investing in one stat can leave you vulnerable to later waves.
Advanced Tactics: Watch for special zombie abilities! Always reserve some Sunlight for emergency upgrades to counter unexpected threats and secure victory.