Oxyd

Oxyd is a 1990 puzzle game developed for the Atari ST and ported to the Amiga, Macintosh, MS-DOS, and the NeXT platform by Dongleware Verlags GmbH. It is a game of puzzles and tests to restart all the oxygen generators (called Oxyds) on the player's home planet. The Oxyds must be restarted by opening them in pairs of matching patterns, and (in colour versions) matching colours.

Oxyd
Developer(s)Meinolf Amekudzi
Publisher(s)Dongleware Verlags GmbH
Platform(s)Atari ST (original)
Amiga, MS-DOS, Macintosh, NeXT
Release
(ST), 1992 (DOS/Mac)
Genre(s)Puzzle game
Mode(s)Single-player
Screenshot of Per.Oxyd

The Atari ST version was developed with the Megamax Modula-2 programming language.

Gameplay

The player controls a small black marble that rolls around, touches things to activate them (Oxyds are opened by touching them), and bashes things to move them. The player has an inventory and can add some items to the inventory by rolling over them. The game's playfield is called a landscape. The player must open all of the Oxyds to progress to the next landscape. Oxyds must be matched in pairs. An unpaired Oxyd will close if an Oxyd of another pattern or colour is opened.

Some landscapes also contain textual clues, which the player can place in their inventory by rolling the marble over them. They can then be selected and read. There are clues on many landscapes: some are helpful, but others are confusing or not so helpful. Other useful items include bombs, dynamite, spades, keys and computer disks. These items may be placed in the inventory, and can create or destroy blocks, create holes, fill holes, and open doors. There are other interactive blocks, including movable wooden blocks, lasers, mirrors, hidden passages. There are also dangerous areas, including bottomless pits, crumbling floors (which collapse if the marble has been rolled on them several times), slides, pools of water to drown in, quicksand (which the marble will slowly sink in), and assorted traps.

Some levels invert the player's controls, and in the sequel games, the player has to control several balls, which shatter if they touch each other.

There were two-player levels with one black and one white marble that could either be played by one player, alternating his mouse control between either marble, or by two players playing on two interconnected computers. The interconnection would be accomplished by MIDI on the Atari ST, or by the serial ports on other machines. Players had to collaborate, not compete, to complete such levels.

Marketing

Dongleware offered for $4 shipping and handling the first ten levels of Oxyd,[1] and the game was easily obtainable from shareware CDs or bulletin board systems. From the 11th level onward, at various intervals throughout the games, "Magic Tokens" blocked crucial parts and passageways of the landscapes, mostly rendering progress impossible. These stones could only be removed by entering a code. The Oxyd Book was sold separately for $39, with code tables matching the information given on the Magic Stone.[2] This form of software protection used the book as a dongle or code wheel; however, unlike other games which use the code book protection approach, the game itself was free.

Sequels and re-releases

Oxyd gained enough popularity to spawn a number of sequels: Oxyd Magnum, Oxyd Extra, and per.Oxyd (also known as Oxyd 2). Additionally, Oxyd itself was a sequel to a lesser-known game, called Esprit.

In summer 2019, Dongleware announced a completely new Oxyd release[3] and a port of the classic version to the Nintendo Switch console.[4]

Enigma is an Open source fangame with over a thousand different landscapes that can also read the original Oxyd level packs (they are not included for copyright reasons). Also the included "Dejavu" level packs contain levels with similar ideas to the original levels.

Mad Data, with the permission of Dongleware, has produced an official freeware game with the name "Oxyd extra v2.0".

Reception

Computer Gaming World in April 1993 called Oxyd "My favorite new shareware title ... an exceptional offering, guaranteed to provide numerous hours of enjoyment".[2] The magazine in April 1994 said that Oxyd Magnum "will quickly pull players deeper and deeper into its 100 devilish mazes".[5] Computer Gaming World in May 1994 said that it "is a game with very few flaws. The graphics are clean, and the mouse control is crisp", and praised the small size. The magazine concluded that "Oxyd Magnum is a top notch puzzle game that will keep players up to the early hours of the morning attempting to solve 'just one more level'".[6]

See also
  • Enigma: Open source fangame with over a thousand different landscapes.

References
  1. "My son and I love this game!!! Great work!!". Computer Gaming World (advertisement). January 1994. p. 141.
  2. Miller, Chuck (April 1993). "Mental Gymnastics". Computer Gaming World. p. 94. Retrieved 6 July 2014.
  3. "Dongleware Verlags GmbH". www.dongleware.com.
  4. "El clásico Oxyd resucita a finales de año en Nintendo Switch". Nintenderos - Nintendo Switch, Switch Lite y 3DS. 5 August 2019.
  5. "Taking A Peek". Computer Gaming World. April 1994. pp. 174–180.
  6. Hill, Ken (May 1994). "It's Hip To Be Square". Computer Gaming World. p. 88.
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