Here is the full list of all 59 The Broston Saga achievements.
Start The Legend of Tyrone.
Complete the "Heart Pills" quest.
Buy the Aimbot Gun from the Weapon Shop.
Complete the "Revenge Mission" quest.
Complete the "Time to Train" quest.
Complete the "Bodyspray" quest.
Achieve the Bad Ending. (TLOT)
Achieve the True Ending. (TLOT)
Begin The Adventures of Tyrone.
Deal with a couple loose ends.
Help a very prominent celebrity.
Make your way through the Albrini Casino.
Become good friends with Dr. Trihard.
Have your first run-in with Blackwatch.
Travel to the Outskirts for the first time.
Befriend an intellectual cat.
Become an official Attorney.
Put a stop to Mariana.
Learn a part of D.J's past.
Solve the mystery of the Inner City Killer.
Find the "source" of Coldpoint's problems.
Complete The Gauntlet.
Take the road to the hospital early.
Complete the raid on the Factory.
Run into an old friend.
Save the simple-minds.
Fight your way through Inner City.
Finish The Adventures of Tyrone.
Begin D.J's Redemption
Meet Martinez for the first time.
Have Tyreese join your party.
Complete the prologue
Help a magician find his magic wand.
Begin working with The Yellow Star.
Complete all of Beaumont's quests.
Defeat the Flying Train
Have your first run-in with ???
Complete The Enchanted City Raid
Complete Chapter 1
This cat doesn't stop talking, does it?
Witness the end of a prominent character.
Complete Chapter 2
Finish the Dancyville questline.
Become a movie star
Help Tommy save the love of his life.
Battle a giant basketball
Complete The Golden Knight Raid
Complete Chapter 3
Complete the "End of Blackwatch" Raid
Save Mimzy
Put an end to Mimzy
Complete Chapter 4
Do you understand yet?
Complete Chapter 5
It's not over yet...
Achieve Ending 1
Achieve Ending 2
Achieve Ending 3
Achieve the true ending