Tools

Angry Birds Tower Defense Calculator

Type the chance and the number of spins you can pay for. Defaults are the reported Red Slingshot window, not a live inventory read.

Angry Birds Tower Defense Calculator

Type the chance and the number of spins you can pay for. Defaults are the reported Red Slingshot window, not a live inventory read.

This calculator is arithmetic on a table, not a live mixer. Enter quantities from your own Angry Birds Tower Defense session. It will not click the shop.

Drop probability

Slingshot spin odds

Estimate the chance of at least one Red Slingshot (or any later roulette prize) if every spin is an independent roll at the chance you type. The 5 percent and 100-Feather price are launch-window reports, not a permanent rate table.

Enter values from your session.

Chance of at least one success = 1 − (1 − chance per attempt) raised to the number of attempts.

Defaults match the reported Angry Birds Red Slingshot roulette: about 5 percent at 100 Feathers, with a stated stock of 3,000. The like-reward code grants 50 Feathers, which is short of one reported spin. Replace both inputs with the numbers on the live wheel. Each spin is treated as an independent roll. This does not read your inventory or guarantee a limited.

FAQ

Angry Birds Tower Defense calculator questions

What do you actually do in a match?

Place bird towers beside a path so they attack pig waves before the pigs reach the eggs. You can play alone or with up to three other players. Chapter clears award experience, which unlocks more birds and upgrades. Matching towers can be merged to level one of them up.

Which bird towers are confirmed?

The game page names five roles: Red for single-target damage, Chuck for piercing speed, Bomb for splash, Terence for heavy boss damage, and Stella for knockback and support. Official posts also advertise 60 or more Angryverse characters. Stats for birds beyond those five are not published.

Which maps can be cleared?

South Beach is the map the description tells you to defend, and Storm The Beaches is the beach-clear badge. Cornucopia Woods and Bird Village are still marked coming soon, while Save The Forest is already being awarded for a forest clear. A launch post also promised three maps with different difficulty levels, which matches that trio once the two later maps open.

How many codes work right now?

angrybirdsarego is the only string printed on the game page. It is the like reward, and the page says another code is planned at 2,000 likes. That milestone is not a second working code yet. No expired codes have been published.