Unlockable Cheats

If you finish enough Abstergo challenges - as below - you will unlock the named cheats. They can be found in the Cheats option in the Abstergo Challenges menu. (Note: You cannot earn Achievements or save the game while these are in use.)

Armed to the Teeth - Finish 90 Abstergo Challenges
Arrr Matey! - Finish 20 Abstergo Challenges
Celestial Navigation - Finish 10 Abstergo Challenges
Dead Men Tell No Tales - Finish 70 Abstergo Challenges
Deceased Crew - Finish all 100 Abstergo Challenges
Loaded to the Gunwhale - Finish 50 Abstergo Challenges
No Quarter - Finish 30 Abstergo Challenges
Poseidon's Will - Finish 60 Abstergo Challenges
Scourge of the Seven Seas - Finish 40 Abstergo Challenges
Shiver Me Timbers - Finish 80 Abstergo Challenges