Here's a brief introduction to get you started:
You can still find physical "Big Box" or DVD copies of the 2012 Deluxe edition on secondary markets (like eBay). These usually come with a Steam key that, when activated, adds the 2012-era routes to your modern library. Why Avoid "Cracks" for Train Simulator?
Who else is still running the Horseshoe Curve or the Seebergbahn? Let’s see your best screenshots! 📸
—is often available as individual DLC or bundled in "Classic" packs on the Steam Store. Steam Keys: