Portal: Prelude, as its name states it, is an unofficial prequel to the game Portal. Its story revolves around the pre-GlaDOS epoch, even before she was plugged in. At this time, test subjects were monitored by real Aperture Science employees, whose work was tedious, lengthy and repetitive. This is why they decided to build a great artificial intelligence that could both replace them in these difficult tasks, and also take responsibility for many other tasks within the complex and compete with Black Mesa's superiority. All employees of the Aperture Science complex are now eagerly awaiting GlaDOS. Maybe even a little too eagerly, as the upcoming events will tell... This game is totally free. It offers a bit more gameplay hours than the original Portal, with 8 chapters, 19 test chambers, 48 challenges, 6 advanced maps, a brand new storyline and more than 400 lines of english speech with dozens of subtitles translations.
The statistics above update daily and provide insight into how well articles, files, videos, images and other content you post is affecting the popularity of your mod. If you wish to track these statistics on your homepage, blog, facebook or even in news and forum posts here, use the embed code provided.
We recommend you link to your mod profile on your homepage, blog, forum and other communities you are a member of like Facebook and Twitter. To help you do this you can copy and paste any of the share options code provided, or check out our mediakit.