Post every letter in the house

Find all the artefacts stolen from Prattle's museum

Talk to Ghasper in each room

ME1: Land on an uncharted world

ME1: Complete 5 missions with the Alliance sentinel squad member

ME1: Complete 5 missions with the turian squad member

Finished Arcade Battle.

Achieved a perfect victory. (Excluding offline player battles)

Empty the sink in Ambrose

Help Wolter organize the race in Celerion

Put back all the books on the messy shelves in Celerion

Get the big wheel spinning in Celerion

Prepare Ardwin's Cake for Seross in Ambrose