# blockthreat/blocksec-ctfs

A curated list of blockchain security Capture the Flag (CTF) competitions

Repository: https://github.com/blockthreat/blocksec-ctfs
Canonical: https://ross.abutalabs.com/products/blocksec-ctfs
License: CC0-1.0
License Family: permissive
Last push: 2024-03-11T14:55:28+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2059, "days_push": 905, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1632, forks 250 (observed 2026-08-28T04:05:14.106586+00:00)

## What it is
A curated list of blockchain security wargames, challenges, and Capture the Flag (CTF) competitions along with solution writeups. It serves as a reference index for practicing smart contract security skills through hands-on challenges like Ethernaut.

## Use cases
- find blockchain security ctf competitions
- practice smart contract hacking challenges
- learn ethereum security through wargames
- find writeups for ethernaut challenges
- prepare for web3 security audits
- discover blockchain security training resources

## When to choose
- you want a curated index of blockchain security CTFs and wargames
- you are learning smart contract security and want practice challenges with solutions
- you need references to writeups for challenges like Ethernaut

## When to avoid
- you need an actual CTF platform or tool rather than a list of links
- you are looking for general blockchain development tutorials unrelated to security
- you need maintained software rather than a curated resource list

## Facets
- artifact type: learning-resource
- maturity: active
- function: security, developer-tools, documentation
- domain: blockchain, security, awesome-lists, education
- platform: cross-platform
- tags: awesome-list, ctf, blockchain-security, smart-contract-security, wargames, writeups, ethereum, solidity, smart-contracts

## Member repositories
- blockthreat/blocksec-ctfs (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:14.106586+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:47:26.996653+00:00, confidence not recorded.
  - readme: https://github.com/blockthreat/blocksec-ctfs (fetched 2026-08-28T04:05:14.106586+00:00, sha 2a3f69a21f6b)
- Data as of 2026-08-30T08:39:29.467469+00:00.