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Star Trek/Space War is a text-based strategy game inspired by the television series Star Trek and popular on minicomputers, mainframes, and early PCs in the 1970s and -80s originally programmed in 1971 by high-schooler Mike Mayfield for the SDS Sigma 7 mainframe. The TWENEX version of the program is based on David Ahl's DEC BASIC port[*], which Ahl distributed under the name of Space War (file name
The Instructions section below duplicates the original in-game help text, which Ahl adopted unchanged from Mayfield's source. In addition to adapting the text format, minor corrections have been made to spelling and punctuation. In the game, commands are selected by the number indicated in the headings below (this page's table of contents can serve as a quick command guide).
There are two commands not documented below:
To play Star Trek, log-in to your TWENEX account, enter
BASIC, then run the following commands:
OLD <PAPA.BASIC>SPCWR10.BAS RUN
The galaxy is divided into an 8,8 quadrant grid which is in turn divided into an 8,8 sector grid.
The cast of characters is as follows:
<*> = Enterprise +++ = Klingon >!< = Starbase * = Star
Course is in a circular numerical vector arrangement as shown.
4 3 2 \ ^ / \^/ 5 ----- 1 /^\ / ^ \ 6 7 8 Course
Integer and real values may be used. Therefore course 1.5 is half way between 1 and 2.
A vector of 9 is undefined, but values may approach 9.
One warp factor is the size of one quadrant. Therefore to get from quadrant 6,5 to 5,5 you would use course 3, warp factor 1.
Print the quadrant you are currently in. Including stars, Klingons, starbases, and the Enterprise, along with other pertinant information.
Shows conditions in space for one quadrant on each side of the Enterprise in the middle of the scan. The scan is coded in the form XXX, where the units digit is the number of stars, the tens digit is the number of starbases. The hundreds digit is the number of Klingons.
Allows you to destroy the Klingons by hitting him with suitably large numbers of energy units to deplete his shield power. Keep in mind that when you shoot at him, he gonna shoot at you, too!
Course is the same as used in warp engine control. If you hit the Klingon, he is destroyed and cannot fire back at you. If you miss, you are subject to his phaser fire.
Note: The library computer (Command 7) has an option to compute torpedo trajectory for you (Option 2).
Defines number of energy units to be assigned to shields. Energy is taken from total ship's energy. Note that total energy includes shield energy.
Gives state of repairs of all devices. A state of repair less than zero shows that the device is temporarily damaged.
The library computer contains three options:
Which shows computer memory of the results of all previous long range sensor scans.
Which shows number of Klingons, stardates, and starbases left.
Gives trajectory and distance between the Enterprise and all Klingons in your quadrant.
[*] Minor incompatibilities between DEC BASIC and TWENEX's BASIC-10 required some modification of the source code: