Known as Torchlight Frontiers during its Alpha stage, the successor of Torchlight and Torchlight II is now on its way to being launched as — obviously — Torchlight III. Even more, the game will drop the free-to-play business model and will be available at launch via Steam instead of Arc.
https://www.notebookcheck.net/Torchlight-Frontiers-becomes-Torchlight-III-drops-free-to-play-model.451760.0.html