Grav unknown was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This software is a product of Agrando AB. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software.
From the developer:
Grav is a modern open source flat-file CMS. Performance is not just an afterthought, we baked it in from the start. Grav has a powerful API and sophisticated Package Manager to make it super flexible. Grav is Open Source, and all the code is available on GitHub.com. Use your favorite Markdown editor to create your content online or offline. The built-in Package Manager lets you to find, install, and easily update extensions and themes for Grav.
You may want to check out more software, such as Grave Mania: Undead Fever, Grave Mania: Pandemic Pandemonium or Grave Matter, which might be similar to Grav.