There are bound to be one or two glitches in any first release.
I’ve just uploaded new versions of ghar-0100-sdl-win.zip and ghar-0100-ascii-win.zip that should work.
To compile just install Free Pascal and type “fpc Arena_R” at the console. On Linux you’re also going to have to install some dependencies; Windows users can get the dll’s from the sdl-win archive.
Most of the sdl stuff will already be installed on most systems, but with Lua you need to make sure you have 5.1 instead of/in addition to Lua 5.0.
Let me know if you run into any more problems, I’ll try to fix them as quickly as possible,