As always, quite difficult to judge... Congrats to all for applying the challenge, I wish I could have myself...

My 2 choices:
1/ SuperMax Seven by Diamond: very detailed, neat realization, ready to use, and I like the simple and efficient style
2/ The Dark by lostatsea: clear and ready to use sci-fi style

My would be choices / special mentions:
Detention Centre 417 by LonewandererD: nice details (escapees and others), but lack of readibility inside the camp itself.
The Devil's Cauldron by Yospeck: nice style and feeling, but no map key or indications except some drown in the text, would be my first otherwise.
Brbridge of Tears Prison...There is no return. by Bogie: nice continuing of last challenge, but no map key or indications.
Sci-Fi Ancient Prison Ship by Fury: style very interesting depicting a grim sci-fi mood, but lack readibility, I spent some time on it but still don't understand the place.