Gemstone CTF

This is an experimental CTF setup based on pokeemerald (https://github.com/pret/pokeemerald)

You will need the CTF binary which is subject to change whenever new challenges are added. You can grab the latest version from: https://v2.karathan.at/gemstone.bps or build it from source (https://github.com/SBird1337/pokegemstone)

To apply the patch you can use https://www.marcrobledo.com/RomPatcher.js/ - The file you want to patch has the following sha1sum: f3ae088181bf583e55daf962a92bb46f4f1d07b7

You can view and do all challenges over at https://gemstone.karathan.at/challenges without creating an account. You can sign up for free to submit your flags and be listed on the scoreboard if that's your thing.