https://wccftech.com/fallout-new-vegas-building-bridges-multiplayer/

A new Fallout New Vegas gameplay mod that has been released online a few days ago introduces asynchronous multiplayer in the vein of Elden Ring and the other entries in the Souls series by From Software.

The Building Bridges mod allows players to interact with one another by leaving messages in the game's world. The mod also introduces a rating system and a reporting system.