Watched series
Here's a list of all the series I've watched so far, including my opinions and such ^_^
Marble Hornets
Not only the first slender series but also the first one I've watched and the one I hold very near and dear to my heart! An absolute must watch in my opinion, a bit less detailed in terms of characters compared to other series but the story and atmosphere is incredible. Established many themes for other creators like the glitching effects and the "slender sickness".