Detectiveland is a well-written call-back to the interactive fiction of yesteryear: the terse room descriptions and unguided exploration of a classic Scott Adams work mixed with the contemporary themes and concepts present in modern interactive fiction.
Music, sound effects, and visuals all work together to provide a compelling and tight experience. The writing voice is strong and firmly in line with the hard-boiled potboilers of detective fiction, while avoiding the blatant sexism and nihilism that pervaded noir.
There are many laugh-out-loud moments throughout the piece, and some of my favorite endings are the "bad" ones, which aren't differentiated outside of your experience. They all end the same, but the last moments, as chosen by the player, are relevant and and meaning.
The puzzles were a nice touch, and show a way for twine-like pieces to recreate classic "do what with what" puzzle design. Some of them were a bit obtuse at first, but the game aspect is very forgiving, and it's easy to attempt again. The game aspects deviate from classic IF in not being cruel; the game state can't be made unplayable.
This was a satisfying detective romp, and it's obvious why it won the 2016 IFComp. Very recommended.