Trial of Dexterity: throw onto the plate

Throw a light object onto the pressure plate on the far side of the corridor. A plain rock works. When it lands on the plate, the gate beside it opens and you can collect the key for the nearby chest.

Make a throw rather than a drop

1. Face the distant plate.
2. Pick up a suitable light object from the shared inventory.
3. Drag it into the exploration view and release it high enough to throw forward.
4. Watch its landing position. If it drops near the party, pick it up and throw again rather than waiting for the plate to respond.
5. Once the gate opens, cross and retrieve the key.

Dropping an object near your own feet does not press a distant plate. Check where it lands before concluding that the puzzle is broken.

If the rock did not activate the plate

Confirm that it reached the actual plate rather than a neighboring tile. Reposition the party to face the target and retry the throw. The interaction depends on an object reaching the plate; clicking the gate or leaving a rock in the shared inventory does not substitute for that action.

This is the optional Test of Dexterity in Soulforge Depths. You do not need its treasure chest to continue the main route. The earlier Hollowgrave plate crossings use throwing too, but are separate rooms.

For the colored flames near the Soulforge entrance, use Seal of Yellow and Seal of Purple. Those require combinations of lit flames rather than thrown items.