See Uncharted 4's First DLC in Action Right Here

The stream has begun. You can watch it here on Twitch.

Naughty Dog started off by confirming the expansion is called Lost Treasures. We also learned that patch 1.08 is introducing a ranking system (the max level will be 70).

Additionally, the new map is called Sunken Ruins, and it will look familiar to people who have played Uncharted 4's campaign. It's one of the smaller and "faster" maps in Uncharted 4, developers said. The map will be free for all players when it's released tomorrow.

Additionally, some new pirate skins are included with the update for characters such as Nate, Elena, Sully, Elena, Nadine, Flynn, and Eddie.

It was also confirmed that the multiplayer pack and update will be out tomorrow morning at around 10:30 AM PST or 11:30 AM PST. There won't be any new Trophies.

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Naughty Dog will showcase Uncharted 4's first multiplayer expansion during a livestream that starts very soon. The show kicks off at 11:30 AM PST / 2:30 PM EST--watch it here on Twitch.

During the broadcast, Naughty Dog will showcase some of the expansion's content, including a new map, as well as the changes coming with patch 1.08. The expansion and patch are scheduled to come out on Wednesday, June 29.

Included with the expansion are things like a new map and "updates to multiplayer that many have been asking for," Naughty Dog said in a blog post. There will also be new guns, boosters, taunts, and skins, as well as new features in the form of custom matches and custom loadout names. Also included is a "revamp" to the ranked team deathmatch mode.

A second livestream will be held on Thursday, June 30, where the multiplayer team will offer a "deep dive" into the ranked team deathmatch changes.

Here's the Uncharted 4 DLC roadmap, in case you missed it:

Uncharted 4 launched on May 10 and sold 2.7 million copies in its first week. GameSpot's Uncharted 4 review scored the action-adventure game a 10/10.

"Uncharted 4 is a challenge to the medium. In its writing, in its design, in its understanding of what makes games unique, Uncharted 4 is something to aspire to," critic Mike Mahardy said. "It's a shining example. And we'll be talking about it for years to come."