Provides a chance for an upgrade in Attack Upgrades (Workshop) to level up for free after each wave.
| ‣ | Type | Common | Rare | Epic | Legendary | Mythic | Ancestral |
|---|---|---|---|---|---|---|---|
| Free Attack Upgrades substat | ‣ | 2% | 4% | 6% | 8% | 10% | 12% |
| ‣ | Type | Description | Unlock Cost | Max Level | Max Enhancement | Upgrade Costs |
|---|---|---|---|---|---|---|
| ‣+ | ‣ | Applier a multiplier to Free Attack Upgrades, ‣, ‣. Starts at 1x and increases by 0.01x per level. | 5 trillion ‣ spent on Utility Enhancements | 50 | 1.5x bonus | See Wiki for level costs. |
https://the-tower-idle-tower-defense.fandom.com/wiki/Free_Upgrades#Free_Attack_Upgrades