The legitimate game is available for download at these prices:
: The OMSI-WebDisk community occasionally hosts advent calendars or contests where users can win payware mods and DLCs for free. Installation Guide for Steam Edition
After Steam says "Complete":
Do not waste 6 hours hunting for a free full version. Instead, spend $7 during a Steam sale. For the price of two fast-food burgers, you get:
Once you've downloaded the game, follow these steps to install it:
