For those who don't know, Nelson Tethers is the debut episode of Telltale's new "Pilot Program", which, as its name suggests, aims to make one-shot episodes that test whether or not people are interested in a certain game. If people are interested, a full series is developed and vice versa. It was developed in collaboration with Grickle-creator Graham Annable, as can be seen in the game's art style and felt in the game's tone. Read Mixnmojo's review to see whether it's your cup of tea, or just take a leap of faith and buy it.
Source: Telltale Blog