Provisional Government Center (Act 2, Chapter 9)

Start from the mistle (a type of checkpoint (an auto-save point you restart from on death)). Be aware of silva guards and enemies playing dead; attack any bodies you see. Dodge walls with holes as tentacles will attack.

Take the east route from the mistle. Follow the linear path, collecting items and defeating enemies, until you reach a fork. One path leads to a bridge, the other to a dead end with Dominic, who offers a side quest to collect items.

Continue west across the bridge to a large open room. Destroy the boxes to reveal three paths. The one closest to your entry point leads to a dead end with a mark of honor (a collectible).

Take the ladder down. Follow the path to the right to purify a mistle and open a door back to the start point.

Go back to the ladder and take the left path. Destroy boxes to find a locked door, various items, one of Dominic's quest items, and a path to a ladder.

Climb this ladder to find the last depths map (a collectible).

Return to the first ladder and go back up. Continue down the remaining path.

Follow the path to an open space. Deal with enemies and items, then go up the stairs to the northeast.

Follow the path to a fork. Go left, break boxes, and collect another quest item. You will find a ladder to lower.

Go down this ladder. Follow the path until another fork. Go left and open a door to return to the start point. (The left side of this fork is mostly items and can be explored separately).

With the new shortcut open, return to the first fork before you went down the ladder and take the other path.

Follow this mostly linear path, fighting enemies and grabbing items, until you reach a room with a fork. Enemies are on ledges above. The path ahead leads to stairs to that area. The other path is a dead end with items.

Go up the stairs and follow the linear path onwards.

Reach a fork: one path goes down stairs, the other goes straight. Go straight first to activate a mistle.

Take the other path for a boss battle against the Attendant of the relics. This boss uses Io's moveset and buffs; a two-handed sword build is effective.

Continue past the boss into a hallway with rooms. One room contains a chest accessible by jumping down a ledge and climbing a ladder.

Reach the end of the hall for an elevator and another Attendant who can restore vestiges (items that heal you).

Destroy boxes and tubes in the room to find the last quest item for Dominic. Two new pathways will open.

Take the right path first to a bridge. Before going down the ladder onto the bridge, a vestige can be found to your left.

Cross the bridge, go up the ladder, purify a corrupt mistle, and open a door, creating a new shortcut.

Take the path to the left of the elevator to fight a non-boss version of Argent Wolf. It has a similar moveset and high health but is not as strong as the boss version. Defeating it grants a regen upgrade.

Advance further on this path to purify the last mistle in the area.

Return to Dominic and submit the quest items.

Head down the elevator to the next area.

Advance forward for a cutscene (a story event).

Enter the final area, activate the mistle, and return to base for pre-final boss preparation.

This is also a good time to complete the last depths map.