Toby Mao, developer behind www.rollingstock.net, created a new platform to play 18xx games in a fully automated way. For now only 1889 is available, but he wants to add more titles.
Website: https://18xx.games/
More information (BGG thread): https://boardgamegeek.com/thread/2415089/article/34645990#34645990
EDIT: The next game available on the platform will be 18Chesapeake.