Yes, the current release of L3DT is compatible with Windows 10, 8, 7, Vista, and XP, including both 32 and 64 bit versions. Windows versions from 2000 and older are not supported.
Sorry, L3DT does not support the Mac operating system, and there are currently no plans for a Mac version.
Yes, L3DT will run in Linux using Wine. However, there may be some bugs when running L3DT in Linux, so it is currently recommended for testing purposes only. For more information about L3DT in Linux, please see the user guide.
No, L3DT installations are not portable.
Please refer to the system requirements page.