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README.md

Game Graphics Debugging

Value: 428

Solve Count: 33

Description:

I put a flag in this game, but I can't see it! Can you find it for me?

Info

The player is given a small "game" which when opened, displays a window containing some basic artwork and a colored box in the UI layer. Underneath that box is the flag, however, the flag cannot be viewed because it's being covered.

For CTF event runners

Distribution

Upload all of the zip files inside distrib. The flag is in flag.txt. The different platform versions are suffixed in the file names.

Building (only required if changing the flag is desired)

  1. You must have the following
    • Microsoft Visual Studio with the Desktop Development in C++ module
  2. Clone this repository recursive (--recurse-submodules and --depth=1). This is because the game engine that this challenge uses is quite large so I didn't want to copy all 300MB of its source code into this repo.
  3. To change the flag, paste the string into flag.h. It will be obfuscated during compilation via a library that I found, see obfuscate.h for details. To keep the current flag, skip this step.
  4. Open a Developer Powershell and cd to the challenge directory. (It must be a Developer Powershell)
  5. Run config.bat
  6. Run build.bat
  7. Go to build/release/ and put CTFGame.exe and CTFGame.rvedata in a zip file
    • Both of these files are required for it to work. CTFGame.rvedata contains all of the game's assets (shaders, textures, models, etc).
  8. Upload that zip file to the server for players to download