The Perks Shop (Build & Perks)

What it is

The Build & Perks shop upgrades your whole run between waves (and mid-wave — it pauses the game). Every perk level costs 35% more than the last, so early levels are cheap and later ones get expensive.

The 13 perks

• Eggonomics — wave bonuses +25% per level.
• Sharper Traps — trap damage +30% per level.
• Bigger Bells — bell damage +25% and range +10% per level.
• Colonel’s Confidence Course — the Colonel gains damage, fire rate and aim per level.
• Reinforced Fences — new walls get +60% HP per level.
• Tower Armour — non-wall defences absorb +30% more damage per level.
• Gilded Beaks — every chicken drops +2.5% more eggs per level.
• Chaos Marketing — distraction defences push and stun 20% harder per level.
• Armour Piercing Rounds — damaging defences deal +7.5% damage per level (3.75% past level 30).
• Beast Mode — creatures attack and move 10% faster per level.
• Bigger Bangs — all explosions deal +10% damage per level.
• Rapid Fire — every defence attacks 15% faster per level.
• Bank Interest — banked eggs earn 1% interest per wave per level.

Pro tips

Armour Piercing Rounds and Rapid Fire scale your whole board — rarely bad buys. Economy perks need time to pay off, so buy them early or not at all. See the full guide with when-to-buy notes on the Tips & Strategy page.