How to play Dimension of the Machine in Ironwail
Go here: https://ia903403.us.archive.org/view_archive.php?archive=/20/items/quake-complete/Quake.zip
Download mg1/pak0.pak and put in mg1 subfolder (next hipnotic, id1, rogue, etc...)
The levels are now available, but the text messages will not appear correctly. To fix that:
Download QuakeEX.kpf and extraction the localization folder to ironwail (again, next to id1).
Done. You can launch with ironwail.exe -game mg1 or choose the game from the mod menu.