A new launcher synchronizes any mods you have subscribed to, and lets you customize their activation state and loading priority. In addition, when playing Internet games in the lobby, you will be able to filter modded games by mod combination, and with a single button click, subscribe to those mods. Torchlight II will then restart, synchronize them, and activate them before returning you to the game.
The Steam Workshop is also fully integrated with GUTS, the in-house editor for Torchlight II. You can publish directly to Steam Workshop when you compile your mod, making it available immediately for others to play. Mods that have already been made with GUTS can also be quickly imported into the Steam Workshop.
The Workshop launch also introduces new content into the base game, including:
The NetherRealm tileset - new NetherRealm dungeons can be found via portals throughout the world
New armor sets
New pets - including the Headcrab!
New endgame map content
Some additional new dungeons in New Game plus modes in large overworld areas