TEEFAX: Cold Case

TEEFAX is a mysterious puzzle adventure game that has you solve a cold case after an old laptop containing the photos of a long unidentified victim is found in an abandoned house. There is also an app on the laptop - The Door. The police reckon it may be a cipher of some sort, but as they are unsuccessful in solving it, they turn to the public.

Unique puzzles, no "Guess the Code" that's written on the fridge
Fine tuned level of difficulty
Subtle, but direct hints
TELETEXTy design of the early 2000's
A captivating story with a lot of hidden lore
Environmental puzzles