Half-Life mod "Prison" from Reaktor (creator of "The Trap").
My god what a masterpiece!
I haven´t played such a good mod in years.
Gameplay: Perfect! Challanging fights and difficult puzzles to solve. But they are allways fair. Play it on easy mode though. Thats difficult enough.
Graphics: Wonderful! The first black-mesa part may not be so great looking but once you go to xen it becomes better and better. I think I like this Xen even more then the original in HL. Those are some of the best graphics I have ever seen in a HL-mod.
Story: Im not sure if there is any and if so then it is in russion...
Most of all I like the creativity in this mod. So many new ideas. So many gameplay changes. So many nice special effects.
Clearly 10/10