Our newest writer Rob did his first review last week, and let me tell you what, he definitely earned his place on Modinformer. Check it out.
Rob wrote: Now, when I first found all of these Portal mods Prelude and Project Beta would have to be the most cherished within the community, and so naturally I assumed that these creative mods would tell its own story while also keeping the Puzzles playable and also on the same level as Valve. Nope. After a few days and much of my hair going missing from yanking it out, I realized a horrendous fact: Portal mods are hard. Really hard. Sometimes outstandingly hard. Portal: Prelude falls under this wide category, being just under the bar of unplayability and right above the bar when it comes to fun.
I never really liked this mod in all honesty. I have beaten Portal 1 and Portal 2 both without any kind of cheats... but when I played this, I just couldn't get through it at all. I had to cheat through pretty much the whole thing, unfortunately. I'm just horrible at solving puzzles I guess. (I really loved the whole GLaDOS sequence in the mod though)
Personally, I haven't played it, but i like challenges. :D
Try Gamma Energy. It uses the same story dialogue for Portal 1, but it turns the difficulty up to 11. I've still yet to defeat... what was it? Chamber 20? That one was bloody insanity, and I was trying -everything-.