This limited edition of Hydra is fully functional, but compiled as a 32 bit
binary with at most 64K objects and 255 connections.  It is distributed free
of charge and comes with absolutely NO WARRANTY.

Unrestricted 64 bit binaries are available under a commercial license.

Hydra is compatible with DGD, but uses all available processor cores to
speed up operation, while simulating DGD's single-threaded behaviour.  It
requires an LPC object library to work.  The following are some useful
websites about DGD and LPC:

    http://dgd-osr.sourceforge.net/
    http://dgdhub.org/filemgmt/index.php