This is the ramses GitHub repository.
Ramses is an open source code to model astrophysical systems, featuring self-gravitating, magnetised, compressible, radiative fluid flows. It is based on the Adaptive Mesh Refinement (AMR) technique on a fully-threaded graded octree. ramses is written in Fortran 90 and is making intensive use of the Message Passing Interface (MPI) library.
Download the code by cloning the git repository using
$ git clone https://github.com/ramses-organisation/ramses
You can go to the user's guide using Read The Docs. Please register also to the mailing list. You can get support on Ramses on the Github Discussion page
To generate idealised initial conditions of galaxies, check out DICE. To generate cosmological initial conditions, check out MUSIC.
To visualize RAMSES data, we encourage you to use YT, OSYRIS or PYNBODY.
You'll find a lot of useful ressources, links and news about the Ramses community on https://ramses.cnrs.fr/, a website edited by the French "SNO" Ramses.