Here is the full list of all 26 Overboard! achievements.
Money, man and murderer in 2 hours or less
Everything ship-shape in 4 hours or less
Establish relations with an officer
All of Malcolm's possessions, into the sea
Clean someone out at cards
Get your way the hard way
Talk someone down
Reunite with Malcolm
Put an old lady to sleep
Discuss literature with the highest authority
Everything ship-shape and Bristol fashion
Everything ship-shape in 5 hours or less
Get off in 3 hours or less
Get off in 5 hours or less
Money, man and murderer in 5 hours or less
Earn a small fortune for your efforts
Seven down
Six down
Five down
Four down
Three down
Two down
Get the killer sent to prison
Steer the ship
Allow the killer to escape from justice!
Get yourself a nice man