Deadline was not only the first non-fantasy for Infocom; it was also the first Infocom game to ship with feelies: the original game was sold in an eye-catching "police folio" folder. In it, you find materials that resemble contents of a real case folder: interviews with the suspects, 3 pills in a plastic bag (found at the crime scene), a photograph of the murder scene, a letter from the attorney, and a coroner's autopsy report. These feelies are remarkable in their authenticity, and help set the atmosphere for the game even before you start it up. Deadline marks the beginning of what make Infocom games special and worth collecting in their original boxes: Infocom went on to include feelies with every one of their games, and they double as copy-protection devices (i.e. you need the information to solve the games) in addition to boosting the games' collectible value.

The story: you are a police detective asked to investigate the death of Marshall Robner, a wealthy industrialist found dead in his own library from an apparent drug overdose. You have twelve hours to expose the foul play and catch the killer. But before you arrest someone, you'd better have evidence for all three ingredients of a successful prosecution: the murderer's motive, the method, and the opportunity. There are many possible endings to the game, but only one "optimal" one that explains all the loose ends and sees the suspect in jail.

One of the most memorable things about Deadline is the excellent NPCs who behave much more realistically than in most of today's games. All of the game's six main characters are fleshed out with well-written scripts: each character acts in a way that is consistent with his or her motive. Since the game proceeds in "real time" in the sense that NPCs carry out their own agenda no matter what you're doing, and since there are dozens of events you can witness and questions you can ask, you are guaranteed to see something new whenever you replay the game. True to the detective genre, a successful resolution of the case requires detailed interrogations and careful observations of NPCs' reactions to your questions and objects you show them. You can follow them around, or even accuse them outright and see what they have to say.

The puzzles are very difficult in the sense that many of them suffer from either the "guess the exact syntax the designer wants" syndrome, or the "you need to either be prescient or restore saves a lot to see all the right things" problem that also burden other mystery games. You can miss crucial plot points simply because you are not in the right place at the right time, and there is sometimes insufficient hints about when or where that event may take place. This is aggravated by limitations inherent in Infocom's early parser: it doesn't understand many synonyms or sentence variations. The game is also buggy, but that is forgivable given the game's complexity and scope vis-a-vis hardware limitations in 1982.

Even with a very high difficulty level and a buggy and limited parser, Deadline still ranks as one of the best Infocom -- and murder mystery -- games ever made. It is very well-written, full of believable and memorable characters, and offers deep gameplay that will truly make you feel like a real detective. A must-have.