Ultimate Crit Card

Last verified 2026-07-30 · 2 data tables

Ultimate Crit is an epic card in The Tower: Idle Tower Defense. It gives your ultimate weapons a chance to critically hit, using your tower's existing crit factor for the damage calculation.

Ultimate Crit

When equipped, Ultimate Crit adds a percentage chance for your ultimate weapons to deal critical damage. The size of that critical hit is not set by the card itself — it uses your Tower Crit Factor, so anything that raises your crit factor also makes these ultimate crits hit harder.

The card matters most once you rely on ultimate weapons for a large share of your damage. Before that point, the crit chance it provides has little to multiply, and other cards will usually contribute more to your run.

Ultimate Crit value per card level
Card LevelEffect
11%
21.33%
31.66%
42%
52.33%
62.66%
73%

Card Mastery

Unlocking the Ultimate Crit mastery costs 750 stones. Once unlocked, it increases the crit chance your ultimate weapons gain from the card.

The mastery is not a permanent account-wide bonus. It only takes effect while Ultimate Crit is in your active loadout, so you need to keep the card equipped to benefit from the extra crit chance.

Ultimate Crit mastery value per lab level
Mastery LevelValue
0+0.3%
1+0.7%
2+1.0%
3+1.3%
4+1.7%
5+2.0%
6+2.3%
7+2.7%
8+3.0%
9+3.3%

Written for Tower Hub. Numbers and mechanics were cross-checked against our decoded save data and the community's Fandom wiki (community page last edited 2026-07-18). Something out of date? Tell us in the Discord.

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