Make sure that the driver to your 3D graphic card is proper installed and working. Check if your sourcelist is correctly set.
Download the relevant libs that is needed to compile, install and run ITeam;
Code:
sudo aptitude update && sudo aptitude safe-upgrade sudo aptitude install build-essential subversion sudo aptitude install libsdl1.2-dev libsdl-image1.2-dev libsdl-mixer1.2-dev libsdl-gfx1.2-dev libsdl-ttf2.0-dev libgl1-mesa-dev libglu1-mesa-dev
Done.
Compiling ITeam;
Code:
mkdir ~/.Games cd ~/Desktop mkdir ITeam && cd ITeam svn co https://i-team.svn.sourceforge.net/svnroot/i-team/trunk iteam svn co https://gamepower.svn.sourceforge.net/svnroot/gamepower/GP2D/trunk gp2d cd gp2d make linux64 cd ../iteam make linux64 chmod 755 run cd ~/Desktop && mv ITeam ~/.Games
Download iteam.png to your Desktop.

cd ~/Desktop
mv iteam.png ~/.Games/ITeam
nano ~/.Games/ITeam-launch.sh
Add the following;
#!/bin/bash
cd ~/.Games/ITeam/iteam
./run
Save [ctrl] + [o] and exit [ctrl] + [x].
Code:
chmod +x ~/.Games/ITeam-launch.sh alacarte
Go to the Game section in Alacarte and push the New Item button. Fill in;
Name: ITeam
Command: sh /home/USERNAME/.Games/ITeam-launch.sh
Comment: Iteam is a turn-based worms-like game with an anime-like graphics style.
Icon: ~/.Games/ITeam/iteam.png
You can now launch from ITeam by Applications tab —> Games —> ITeam
Enjoy!