Make sure that the driver to your 3D graphic card is proper installed and working. Check if your sourcelist is correctly set.
Next you need is to instal libgtk1.2 for BtRL installer;
Code:
sudo aptitude update && sudo aptitude safe-upgrade
sudo aptitude install libgtk1.2
Download the linux client right here to your Desktop. Good idea to use torrent in this case.
Back to the terminal;
Code:
cd ~/Desktop
sudo sh BtRLDemoInstaller.run
NOTE 1: Use the default settings that the installation window uses. Don't start mess with them, unless you know what you're doing!
NOTE 2: Don't start BtRL from the installation window. The installation window is running under Admin rules and therefore will mess up the permission system of BtRL if launched. Exit it when installation is complete.
cd /usr/local/games/btrl_demo sudo sh uninstall