|Description||Reach the eastern shores and conquer the port there.|
|Game||Armies of Gielinor|
|Orb Points||300||Orb Coins||3|
To receive this achievement, you need to complete the Port Phasmatys mission which is found most North Easternly of the map. Upon completion, you will also unlock the use of Sea Slug units. A strategy to get this achievement can be found here.
In achievements online, the description is conquer Port Phasmatys.