The 3rd difficulty tier in the game, also known as “T3”. Reaching wave 100 unlocks tier 4.

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See this for strategies to unlocking higher tiers: Tier Unlock Strategies & Tips, including T15 W300.

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ℹ️ Tier Unlocks

• Tier 3 unlocks

💡 Related Tips

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• Tip Submission Form

⁉️ Related Frequently Asked Questions

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📜 Related Guides & Strategies

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🛠️ Related Tools & Resources

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🖼️ Related Screenshots & Images

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🎨 Similar Category Items

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