Hallelujah! The best port of the original Settlers has been found: Serflings
The original Settlers, in my opinion, is the coziest of all RTS (real-time strategy) games. It’s a world where every house, every path, every tree is created with love. The sounds and music are absolutely amazing. The attention to detail is incredible. Here’s my old stream: https://youtube.com/watch?v=l0gy4uSsE-U
Serflings runs on Java. It requires the original files (which can be found on old games sites). Be sure to read the guide to understand how it works.