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.
Sure, go on and hate my rating and me but I couldn't enjoy this mod because it was anything like Portal.
After fisnishing Portal + advanced chambers in no time I was looking for more difficult challenges but Prelude is just about knowing the maps and do some tricks as fast and as timed as possible.
Thinking with Portals? Well, kinda
Thinking with the map layout? Certainly yes
Being annoyed by all kind of death traps comming closer? yeah
It's just lame that the developer had to add challenge by making the game just less comfortable instead of making challenge based on logic.
I see this mod is pretty popular but maybe it's just because people like try (save) and error (load) instead of actually using their brain how to solve difficult puzzles. Be sure to hate my review because it's the truth!
If I were to give Portal: Prelude any credit, I'd say it was very ambitious, and I'd congratulate the developer for finishing it.
However, the mod is not entertaining. It has terrible voice acting for one, because the creator himself admitted he could not be bothered to find actual people. In addition to terrible voice acting, the characters that need the voices are all very badly written. They have an unecessary amount of malice for the player; while that was funny in Portal, it lacks any semblance of actual humor in Prelude.
Prelude's gameplay is also deplorable. The developer preps the player, telling them to prepare to "think with portals", but the mod is anything but that. The solution to the puzzle is often glaring you right in the face, whereas the actual challenge is just trick jumps that require perfect precision. The developer defends his decision to remove what made Portal so fun by saying "it would have taken too long to make actually challenging puzzles", and while I don't have a source in front of me, that is literally how I remember him saying it.
The scale of this mod is impressive, but overall it's not worth playing.