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Oxyd is a popular 2D puzzle game from the early 90's in which you roll a marble to trigger switches, collect items and bash things. The goal in Oxyd is to activate the oxygen generators (called Oxyds) by touching them. Oxyd was first developped for the Atari ST but was immediately ported to all comptuer operating systems.
Oxyd was reprogrammed in 2014 for current operating systems and it's open source: Enigma
oxyd.sit (668.3 KiB / 684.34 KB)
Oxyd v3.8 / compressed w/ Stuffit
OXYD_BOOK.zip (46.17 MiB / 48.42 MB)
Oxyd codes book / Zipped
At least 1.2MB of free RAM for the color version (recommended 2.3MB)
At least 800KB of free RAM for the B&W version
Mac OS 6.x - Mac OS 9.2.2
Note: Oxyd does not run well under emulators such as SheepShaver.
Emulating this? It should run fine under: Basilisk II