1973 German Scifi Film World on a Wire Explores VR Sims and AI Before the Matrix

This was originally shown on German television as "Welt am Draht" in two parts. You can watch both parts on YouTube, with English subtitles.

Part 1: https://www.youtube.com/watch?v=jfXtzBRX3sg

Part 2: https://www.youtube.com/watch?v=JOe0sggQfF4

I thought the description sounded a lot like The Thirteenth Floor, then I learned that they're both based on the same novel.