Loginmatrix was the first challenge site I played with back in 2002. I wanted to revisit it, because of good memories. I felt like a real hacker when solving those JS problems that evening. Soon after that I found hackquest (which has been gone for a while now and mod-x, which is in maintenance mode for a few weeks).
So I figured that since these sites are disappearing but some people have romantic feelings about them, at least I try to resurrect loginmatrix.com.
I went to the wayback machine and found almost all levels. I made it available at
Anyway, play with it if you like. Note that it is not complete. The last two levels are still missing, and I cannot find a way to get them back. So I ask the wechall community, one of you might remember how it was, or have a backup somewhere.