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Era 1 · Arcades, first consoles and mainframes

1979–1989sold to Activision for ~$7.5 million (June 13, 1986); the division…

Infocom

A company of ten MIT graduates and staff members that turned Zork, a text game from a mainframe, into a cult of the home computers of the early 1980s, then nearly drowned itself in developing Cornerstone, a business database, and in 1986 was sold to Activision, which closed the Cambridge studio in 1989.

Founders Dave Lebling · Marc Blank · Tim Anderson · Joel Berez · Al Vezza
Domains —
gamestext-adventureparserbusiness-pivotacquisition

In brief

Infocom was a company of ten MIT staff members and students, officially founded on June 22, 1979 around their own mainframe game Zork: a text adventure that by then had been circulating for free over ARPANET for years. On home computers, Zork and its parser gave rise to a cult in the early 1980s, backed by the company's signature "feelies," physical artifacts in the box. But in 1982 the company set out to build Cornerstone, a relational database for the business market. The project ate up loans, a new office, and the income from games, and by 1985 it had brought Infocom to the brink of bankruptcy. In 1986 the company was bought by Activision. According to Lebling, this saved Infocom from collapse, but a decline stretched over three years ended with the closure of the Cambridge studio in 1989.

How it started (the founders)

Dave Lebling and Marc Blank met at MIT in late 1976 or early 1977 over a shared interest in Colossal Cave Adventure by William Crowther and Don Woods. Lebling was already writing games on an Imlac machine (a port of Spacewar, a graphical Hunt the Wumpus, and the networked Maze, which he has called the first first-person shooter and the first networked one as well), and with Blank and Anderson he was making a trivia game built on questions from ARPANET. An interest in D&D, experience with parsers from Morse code work, and the wish to make Adventure "better" led to a prototype in MDL in 1977. Later Bruce Daniels joined the project, which went by the working word "Zork" (a common nonsense term in the lab, like "foo"), and the four of them designed the "Great Underground Empire" with the monster Grue, which Lebling borrowed from Jack Vance.

The company was founded not for the sake of Zork but because the hackers of the MIT Dynamic Modeling Group wanted to stay together after graduation. According to Lebling, at first they went through fairly boring business ideas, such as a document management system. On June 22, 1979, ten people signed the incorporation papers and put in $11,500: the three authors of Zork (Anderson, Lebling, and Blank, who had just finished medical school), five other hackers from the lab, and two advisers, including the head of the DMG, Al Vezza. The main obstacle was doubt that the PDP-10 version, which weighed in at almost a megabyte, would fit into the 16 KB of memory of a home computer. Blank and Berez went off, thought it over, and came back having convinced the others, with a design for the Z-machine, a virtual processor with ZIL/ZIP bytecode.

Year-by-year timeline

Lesser-known but significant facts

  1. The technology that saved the games' portability sank Cornerstone. The Z-machine, a bytecode virtual machine invented in 1979–80 so that Zork would fit into any home computer, was the same architecture Cornerstone ran on. By 1985, when the IBM PC had become the standard, this "portability" turned into sluggishness: a PC Magazine reviewer gave up on a benchmark test after the next-to-longest run took 3.5 hours.
  2. The idea of business software was on the table before there was any commercial hit game. When registering the company in 1979, the group first went through boring business ideas like a document management system and only then settled on Zork. The business leaning that nearly killed the company seven years later had been part of the plan from the very beginning.
  3. Zork nearly stayed "Dungeon." The game was temporarily renamed "Dungeon," which Lebling admits was his own bad idea, but the name "Zork" came back after a threatened lawsuit from TSR, the owner of the rights to D&D. The Fortran version was written precisely during the period when the game was called Dungeon, which is why it is sometimes still known by that name.
  4. Feelies were born not from a love of atmosphere but from a lack of space on the disk. The first "physical" package appeared not for Zork but for the third game, Deadline (1982), in the form of a police case file with photos and interview transcripts, because Marc Blank could not fit all the information into a game of 80 KB.
  5. The fan club literally ran out of a basement in Milwaukee. The Zork Users Group started as a family business: Dornbrook's father processed orders from the basement of the house, and his mother handled the mailings by hand, before the club grew to 20,000 members and 1,000 orders a week.

Legend vs. the record

The first growth lever

The first lever worked even before Zork had a price: circulating for free over ARPANET on the PDP-10 for years, the game created demand, but the distributor, Personal Software Inc., sold it at a sluggish pace in 1980–81 (1,500 copies for the TRS-80, 6,000 for the Apple II). The turning point came in 1982: Infocom built a direct channel to its fans. Mike Dornbrook's Zork Users Group, which started in October 1981 in a basement in Milwaukee, grew in a year and a half from 1,000 to 20,000 members and by 1983 was processing 1,000 orders a week. The paid InvisiClues turned the hint itself into a product with repeat sales. The result in sales figures by year: 12,000 (1981) → 100,000 (1982) → 450,000 (1983), a 37-fold increase in two years without a budget on the level of the competition.

The paired story

Sierra On-Line and Infocom are mirror-image stories of the same moment: both grew out of a genre they had defined themselves, but bet on opposite futures for it, graphics versus text. Infocom was incorporated on June 22, 1979 by ten hackers from the MIT Dynamic Modeling Group; Sierra started as On-Line Systems, put together in 1979–80 by contract programmer Ken Williams and his wife Roberta, who had never written code before, and the company was renamed Sierra On-Line in 1982. In the 1980s–90s both lost focus on a project outside their core business: for Infocom it was Cornerstone, with a $4–5 million loss for 1985; for Sierra, losses of $12.5 million and $4.5 million from CD-ROM projects and abandoned console ports. The difference is only in the scale of the outcome: Infocom was sold to Activision in 1986 for ~$7.5 million and shut down by 1989; Sierra sold itself at its peak in 1996 for $1.06 billion to CUC International, whose fraud came to light in 1998 and in February 1999 led to the closure of the studio in Oakhurst. The upshot is the same: the independence of both was cut short by a decision of the parent corporation, not by failure in the market.

Parallels today (projects from the catalog)

What a builder can take from this in 2026

  1. A cult that grew for free on someone else's infrastructure is not a ready-made business but raw material for one. Zork roamed ARPANET for years without a single sale; turning that into a company worked only once there was a direct channel to the same people.
  2. Switching from a distributor to a direct channel to fans can multiply growth faster than any advertising. Sales grew 37-fold in two years (12,000 → 450,000) not thanks to a marketing budget but thanks to ZUG and InvisiClues, paid relationships with users who were already won over.
  3. The technology that gave you an edge is not universal: test its limits in a new market. The Z-machine made Infocom's games portable, but the same machine sank Cornerstone when the market consolidated around a single platform.
  4. Funding a new line of business with income from a working product is a hidden risk, even if the idea is good. According to Lebling, the team was genuinely excited about Cornerstone; what killed Infocom was not the idea itself but the decision to feed it with money from games instead of financing it separately.
  5. A premium physical detail of a product can become part of the brand in its own right, if it was born of a constraint rather than as decoration. Feelies began as a solution to the problem of 80 KB of disk space, not as a marketing gimmick, and that is exactly why they caught on.

Discrepancies and what we could not verify

Sources (primary first)

Secondary (context, cross-checking):

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