Daydream Software
Their first game was "Safecracker", a point and click adventure game published by DreamCatcher Interactive. The game had a tumultuous production, starting when GT Interactive bought initial publisher Warner Interactive Europe. Daydream Software went public in late 1996. The company's goal was to increase its economic and decision-making freedom, and to secure the ability to select a publisher at the end of each game's development rather than at the beginning. President Jans Phersson-Broburg argued that self-financing Daydream's future games with money from Swedish investors, instead of obtaining "funding linked to specific projects" from publishers, would offer the developer more stability, flexibility and room for growth. For Daydream's public launch, roughly 20 million kr worth of shares, or 45.5% of the company, were offered to investors in Sweden. The initial public offering was a success, and Daydream opened on the Stockholm Stock Exchange's Stockholm Börsinformation (SBI) list in January 1997. Daydream was eventually able to buy back the rights to "Safecracker".
Early mainframe games
Some mainframe games that did not appear in "101 BASIC Computer Games" have still had a lasting impact. One such game was "Space Travel", developed by Ken Thompson in 1969, which simulates travel in the Solar System. The player flies their ship around a two-dimensional scale model of the solar system with no objectives other than to attempt to land on various planets and moons. The player can move and turn the ship, and adjust the overall speed by adjusting the scale of the simulation. The ship is affected by the single strongest gravitational pull of the astronomical bodies. The game was developed at Bell Labs, and was ported during 1969 from the Multics operating system to the GECOS operating system on the GE 635 computer, and then to the PDP-7 minicomputer. While porting the game to the PDP-7, Thompson developed ideas for his own operating system, which later formed the core of the Unix operating system. "Space Travel" never spread beyond Bell Labs or had an effect on future games, leaving its primary legacy as part of the original push for the development of Unix.
Another influential early mainframe game was "Baseball", a sports game that was created on a PDP-10 minicomputer at Pomona College in 1971 by English major Don Daglow. "Baseball" was the first baseball video game that allowed players to manage the game as it unfolded, rather than just picking players at the beginning of a game. The program is documented at the National Baseball Hall of Fame and Museum in Cooperstown, New York. "Baseball" was continually updated through 1974, and distributed to other PDP-10 installations. The text-based game had each player control the pitcher or the batter; they would enter their intention to, for example, pitch to or walk the batter, or switch hitters. The batting player could direct on-base players to steal, and the batter to hit. The results of the play would be printed out onto paper as a verbose description, like a radio description of the game. Daglow went on to develop more sophisticated baseball games in 1983 with "Intellivision World Series Baseball", and 1987 with "Earl Weaver Baseball", as well as numerous other games.