BuidlGuidlBuidlGuidl CTF

Solidity Invaders

ALERT! Invaders have taken 36 flags from the BuidlGuidl Fortress across multiple seasons. Your mission is to complete Ethereum coding challenges and reclaim all of the flags. Each season brings new invaders and tougher challenges!

Start

Bangkok (S1)

The Greeting
Just Call Me Maybe
Empty Contract?
Who Can Sign This?
Give Me My Points!
Meet All The Conditions
Delegate
The Unverified
Password Protected
Give 1 Get 1
Who Can Call Me?
Give Me The Block!

Buenos Aires (S2)

The Greeting
Show Me Your Key
Let Me In!
Pay Me!
Count My Assembly
Give Me My Points!
Calldata FTW
Locked
The Unverified
Who Can Call Me?
Give Me The Block!
Conquer The Game

Mumbai (S3)

The Greeting
Private Isn't Secret
Two-Faced View
Pay As You Climb
Handmade Calldata
Snapshot Heist
Nobody's Timelock
Hidden Entry Point
Forged Voucher
Code Golf
Puzzle Wallet
Final Boss

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