The Oxyd series is a fun shareware puzzle/action hybrid that plays like a cross between Marble Madness, Macintosh classic Crystal Quest, and Chip's Challenge.
The game even boasts a plot: overnight, the (digital) life-supporting Oxyds have closed up and no longer emit vital oxygen. As a result, the digital world is threatened by suffocation and only you (as a black marble) can save it. Your mission is to find all the Oxyds in a given landscape and to open them again. Each two of these Oxyds carry the same pattern or color, and they must be touched in sequence in order to remain open. It's not as simple as it sounds, of course-- your task is made much more complicated by the fact that the Oxyds are scattered over a wide area, and they are not easily accessible.
Part of the fun in Oxyd is the fact that many of the objects you will encounter in this world have completely unknown effects, and they interact with each other in a complex fashion. It's fun to discover these relationships and what each object's raison d'etre is, and there seems to be an endless variety of new terrains and obstacles throughout the hundreds of levels.
With a good balance between manual dexterity and wit, Oxyd Magnum will keep puzzle fans happy for hours, although the large number of obstacles and special objects mean that the game lacks the elegant simplicity of Chip's Challenge.
Review By HOTUD
English 
Comments and reviews
i need help with landscape 65 (code is 84066006). i remember moving all possible blocks to the side years ago and it wasn't the solution and gave up on it.
With the patched 3.9 version, just press any key to break code blocks present in the level(s).
Such a beautifully conceived and executed game.
Posting from Simon's download for convenience, here's the crack:
00040083: 77 - 90
00040084: 02 - 90
000400D0: 74 - 90
000400D1: 55 - 90
000400E7: 75 - 90
000400E8: 78 - 90
00040127: 74 - 90
00040128: 38 - 90
0004016A: 74 - 90
0004016B: 58 - 90
00040184: 75 - 90
00040185: 78 - 90
000401C4: 74 - 90
000401C5: 38 - 90
00040207: 74 - 90
00040208: 51 - 90
00040221: 75 - 90
00040222: 37 - 90
Do this to OXYD.exe in a hex editor (I used xvi32) and then the password blocks can just be cleared by pressing enter. Enjoy!
I went to play the game but it asked for the last number of the game played. I do not have a number. What should I do to get it started? LOVED THIS GAME IN THE 90'S!!!!!!!!!!!
Have fun! It was very hard to find and to patch! Merry Christmas! :-)
Burn or mount and install!
https://workupload.com/file/6w6eaQgw
http://www.grenier-du-mac.net/listes/liste_bizarroides.html
I used to have the cracked exe files for all 4 oxyd games... Oxyd, Oxyd Magnum, Oxyd Extra, Per Oxyd. I lost them all -_- no code book was necessary. They're floating around out there in cyberspace... Yes, all 4 games were cracked, that's a fact because I completed them all and got the certificate that it presents to you at the end. You have to look real hard for them, I just hope they weren't destroyed when the old abandonware sites were taken down.
If anyone has all 4 cracks, please upload them to skydrive or google drive and share the link here in the comments.
Okay I've finally found the game again. I loved this game when it first came out and at that stage even had the code book to get past the last free level.
Do you have the book containing the password codes and where can I purchase a copy from please
This game was awesome..... Very cool ball rolling puzzler which you controlled with the mouse. There's a remake/port for Android which is pretty good too
I remember this was dongleware. So you needed a Book with the Donglecodes in it to play longer maybe there is a pdf somewhere on the net.
In the description it says: "Be sure to download the patch below to crack the game and enable level codes!". I've seen something similar to this statement in a number of other places. What "patch" or link am I supposed to download or click on?
No comment nor review for this game at the moment.