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In Voyage to Neptune, you are in command of the first manned spaceship journeying from Earth to Neptune. The year is 2100, and manned space stations have been established at roughly 500-million-mile intervals along your route. These stations are at Jupiter (orbiting Callisto), Saturn (orbiting Titan), Uranus (on Ariel), and at several points midway between Saturn and Uranus, and Uranus and Neptune.

Navigation of your spacecraft is highly computerized, and you have a competent personnel officer on board to handle the inevitable people problems that will arise during a six-year journey. Your primary function as captain, therefore, is to maintain the delicate balance that will provide your ship with enough energy to reach its destination and return to Earth.
The following hints will help to speed you on your way:

  • Your spaceship uses both solar energy and nuclear fuel. Because you cannot carry enough nuclear fuel for the entire trip, you also have on board a multi-celled breeder reactor, which takes the spent fuel from the propulsion engines along with a small amount of primary fuel and turns it—somewhat inefficiently—back into primary fuel for propulsion. You must decide how much fuel to use for propulsion and how many breeder reactor cells to operate on each leg of the trip.
  • At each space station along the way, you may trade nuclear fuel for breeder-reactor cells and vice versa. You may not trade more fuel than you have; nor may you trade so many cells that your breeder reactor ceases to function.
  • You may have problems with your engines along the way, but there is little you can do to lessen this possibility. Likewise, if you are unlucky, some of your fuel may decay.


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Author: David H. Ahl
CPC conversion by Sand-Rabbit-Software

★ NOTE: A 2017 CPC conversion of a game that was originally written in BASIC.
★ INFO: DAVID AHL'S CLASSIC BASIC COMPUTER ADVENTURES - The Small Basic text based computer adventure simulations you will develop in this tutorial are based on historical personalities like Marco Polo, Amelia Earhart, and on historical events like the Tour de France, The Longest Automobile Race 1908, and the 1847 Oregon Trail. We have also included some fiction adventure simulations like Voyage to Neptune and the Hong Kong Hustle. We even included all the original "GOTO" subroutines for your nostalgic programming enjoyment. To grasp the concepts presented in DAVID AHL'S SMALL BASIC COMPUTER ADVENTURES, you should possess a working knowledge of Windows and have had some exposure to Microsoft Small Basic programming (or some other programming language). We offer two beginning programming tutorials (MICROSOFT SMALL BASIC FOR KIDS and BEGINNING MICROSOFT SMALL BASIC) that would help you gain this needed exposure.

★ YEARS: 2017 , 1986


Game (NON Commercial/Freeware/Shareware):
» The  Voyage  to  Neptune-2100    ENGLISHDATE: 2017-12-15
DL: 5 fois
SIZE: 25Ko
NOTE: 40 Cyls

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L'Amstrad CPC est une machine 8 bits à base d'un Z80 à 4MHz. Le premier de la gamme fut le CPC 464 en 1984, équipé d'un lecteur de cassettes intégré il se plaçait en concurrent  du Commodore C64 beaucoup plus compliqué à utiliser et plus cher. Ce fut un réel succès et sorti cette même années le CPC 664 équipé d'un lecteur de disquettes trois pouces intégré. Sa vie fut de courte durée puisqu'en 1985 il fut remplacé par le CPC 6128 qui était plus compact, plus soigné et surtout qui avait 128Ko de RAM au lieu de 64Ko.