Set in the immediate aftermath of the zombie apocalypse, L4D offers four expansive “movie campaigns” that challenge you and your fellow survivors to battle thousands of swarming zombies as you travel across the rooftops of an abandoned metropolis, through rural ghost towns and pitch-black forests. In addition to the movie campaigns, Left 4 Dead features a Versus mode that allows you to play as the Boss Zombies.
New technology dubbed “the AI Director” is used to generate a unique gameplay experience every time you play. The Director tailors the frequency and ferocity of the zombie attacks to your performance, adjusting pacing, special effects and audio on the fly.
To test out the Ion reference platform the game was set to run at 1024×768 with recommended game settings.
Results: The Ion reference platform didn’t do as hot on Left 4 Dead as it did on Spore as at 1024×768 with recommended game settings the system was only able to run the game at 18FPS.