It's a good mystery visual novel, I liked the atmosphere and the tension that was built up throughout the runtime.
Some of the pacing could use improvement, but the pixelart was nice and added to the game's overall feel.

The only real problem that I had with PIGBLUE was the fact that it was quite obvious that the script wasn't originally written in English. The translated version makes the dialogue and descriptions feel kind of stilted and awkward, and it was distracting enough to take me out of the experience sometimes, unfortunately.

Other than that, a good free game.