You can make the graphics look way better by typing in gl_texturemode gl_nearest in the console like with quake 1 and 2 but how does anyone know to do that? I can't find a full list of console commands anywhere on the internet

Last time I needed the commands, I went through a lot of work to even find them... Will see if I can find them again and post to you. Should be on their wiki page.
edit: Couldn't find specific Daikatana commands list, try the default Quake2 ones. Make sure you have intensity at 3 or higher for buttons and lights to display properly. Also take a look at CURRENT.CFG for hints of what to change.