The most immediate danger is malware. Hackers often bundle key generators (keygens) and cracked software with trojans, ransomware, and spyware.
A: No. DRail does not offer free license keys except to educational institutions in rare cases. Any website claiming to give away free keys is lying.
Software developers occasionally offer discounts. Join model railroad forums or subscribe to the AnyRail newsletter. Sometimes discounts are offered during major holidays or train show seasons.
If the cost is the barrier, you have options that do not involve piracy or security risks.
In software terms, a "portable" application is a version that requires no installation. It can be run from a USB stick on any computer without writing to the Windows registry.
While legitimate portable apps exist for many tools, an "AnyRail Portable" found on a "warez" or torrent site is almost always a cracked version. This means an unknown third party has modified the original software to bypass the license verification.
A: AnyRail is Windows-only. But it runs well under Wine on Linux or CrossOver on Mac. A license works on those setups as well.
A: AnyRail phones home. Within days, the crack stops working, and your IP could be logged. DRail has been known to send cease-and-desist letters to repeat offenders (though rarely).