Here is the full list of all 265 Traitors in Salem achievements.
Win 5 games as an Investigator
Find a player to have bloody hands
Disguise as another player and kill someone
Kill the player you are disguised as
Disguise as another player
Poison 5 players in a game
Win 5 games as a Tracker
Find a corpse and track the killer
Vote guilty on a Traitor while being revealed as the Mayor
Win 5 games as a Sheriff
Win your first game as an Arsonist
Burn your first corpse
Win 5 games as a Medium
Report 3 bodies in a game
Shoot a Traitor as a Vigilante
Win 10 games as a Lookout
Win your fist game as a Jester
Win 5 games as a King
Reveal yourself as the Mayor
Silence the Town with your Banshee Scream
Win your first game as a Poisoner
Poison a player
Counterattack and kill a player with your alert
Win 50 games of Traitors in Salem
Win your first game as a Transporter
Win your first game as a Psychic
Win your first game as a Wildling
Win your first game as a Seer
Reveal a member of the Town
Win 5 games as a Prosecutor
Win your first game as a Tracker
Win your first game as a King
Knight another player
Win your first game as a Necromancer
Use Eagle Eye at night
Summon a minion to do your bidding
Kill a player with your minion
Win with All Traitors still alive
Win your first game as a Vigilante
Prosecute an evil player
Use the Town bell
Win your first game as a Veteran
Sense the death of another player
Win 25 games of Traitors in Salem
Win 5 games as a Townie
Win your first game as a Sheriff
Interrogate an innocent player
Win your first game as a Wraith
Win your first game as a Prosecutor
Win your first game as a Banshee
Interrogate an evil player
Prosecute a player
Use an alert
Win 5 games as a Lookout
Win your first game as a Saint
Use a Teleporter as a Transporter
Use a Teleporter during an Ice Storm
Win with all Town members still alive
Win 10 games of Traitors in Salem
Win your first game as an Investigator
Win your first game as a Mayor
Win your first game as a Medium
Find a player to have clean hands
Win 5 games of Traitors in Salem
Be killed by a player
Complete 5 quests in a game
Use Eagle Eye during the day
Win your first game as a Coroner
Use Heightened Senses during the Day
Use Heightened Senses at Night
Kill a player while Heightened Senses is activated
Win your first game of Traitors in Salem
Win your first game as a Townie
Win your first game as a Lookout
Take a teleporter
Report a body
Cast a Spell
Win by completing the final quest
Complete a quest
Win 100 games of Traitors in Salem
Win 250 games of Traitors in Salem
Win with all Town roles
Win with all Traitor roles
Win with all roles
Win 10 games as a Townie
Win 25 games as a Townie
Win your first game as a Traitor
Win 5 games as a Traitor
Win 10 games as a Traitor
Win 25 games as a Traitor
Win 5 games as a Jester
Win 10 games as a Jester
Win 25 games as a Jester
Win 5 games as a Vigilante
Win 10 games as a Vigilante
Win 25 games as a Vigilante
Win 5 games as a Transporter
Win 10 games as a Transporter
Win 25 games as a Transporter
Win 10 games as a Sheriff
Win 25 games as a Sheriff
Win 25 games as a Lookout
Win your first game as an Executioner
Win 5 games as an Executioner
Win 10 games as an Executioner
Win 25 games as an Executioner
Win 5 games as an Arsonist
Win 10 games as an Arsonist
Win 25 games as an Arsonist
Win 5 games as a Psychic
Win 10 games as a Psychic
Win 25 games as a Psychic
Win 5 games as a Wraith
Win 10 games as a Wraith
Win 25 games as a Wraith
Win your first game as a Disguiser
Win 5 games as a Disguiser
Win 10 games as a Disguiser
Win 25 games as a Disguiser
Win your first game as an Inquisitor
Win 5 games as an Inquisitor
Win 10 games as an Inquisitor
Win 25 games as an Inquisitor
Win 5 games as a Poisoner
Win 10 games as a Poisoner
Win 25 games as a Poisoner
Win 5 games as a Veteran
Win 10 games as a Veteran
Win 25 games as a Veteran
Win 10 games as an Investigator
Win 25 games as an Investigator
Win 5 games as a Mayor
Win 10 games as a Mayor
Win 25 games as a Mayor
Win 5 games as a Wildling
Win 10 games as a Wildling
Win 25 games as a Wildling
Win 10 games as a Prosecutor
Win 25 games as a Prosecutor
Win your first game as a Serial Killer
Win 5 games as a Serial Killer
Win 10 games as a Serial Killer
Win 25 games as a Serial Killer
Win 5 games as a Banshee
Win 10 games as a Banshee
Win 25 games as a Banshee
Win 5 games as a Necromancer
Win 10 games as a Necromancer
Win 25 games as a Necromancer
Win 5 games as a Coroner
Win 10 games as a Coroner
Win 25 games as a Coroner
Win 5 games as a Seer
Win 10 games as a Seer
Win 25 games as a Seer
Win 5 games as a Saint
Win 10 games as a Saint
Win 25 games as a Saint
Win your first game as a Hex Master
Win 5 games as a Hex Master
Win 10 games as a Hex Master
Win 25 games as a Hex Master
Win 10 games as a Tracker
Win 25 games as a Tracker
Win 10 games as a Medium
Win 25 games as a Medium
Win 10 games as a King
Win 25 games as a King
Win your first game as an Illusionist
Win 5 games as an Illusionist
Win 10 games as an Illusionist
Win 25 games as an Illusionist
Win your first game as a Cultist
Win 5 games as a Cultist
Win 10 games as a Cultist
Win 25 games as a Cultist
Be successfully lynched as a Jester
Possess and kill a Town member
Possess a revealed Mayor and kill a Town member
Possess a Town member and have them die to a Veteran on Alert
Shoot a Disguiser while they are Disguised
Shoot a converted Cult Member
Shoot a Poisoner after they have Poisoned you
Use a Teleporter during a Blood Moon
UNDEFINED
Interrogate someone as a Cult Member
Interrogate a revealed Mayor who is Evil
Use Eagle Eye during a Blood Moon
Have your active Eagle Eye canceled by a Banshee
Successfully lynch your target
Lynch three targets in one game
Lynch a revealed Mayor who is your target
Lynch your target on Day One
Burn five corpses in a single game
Burn the corpse of a revealed Mayor
Burn the corpse of a fellow Traitor
Sense the death of a player during a Blood Moon
Sense the death of 10 players in a game
Sense the death of a revealed Mayor
Use Wraith's invisibility
Use a teleporter while invisible
Use Wraith's invisibility five times in a game
Cast the Displace spell while invisible
Disguise as another player and use a teleporter
Check the role of a player
Find a Sheriff
Find a Veteran
Check 10 players in a game
Have a Veteran on alert die to your poison
Make a player die to poison while they are doing Pan's Flute
Kill 3 people with your alerts in a game
Counterattack a Serial Killer's Blood Rush attack
Find 3 players with bloody hands in a game
Find a player to have bloody hands on Day 1
Vote innocent on a Town member while being revealed as the Mayor
Be Knighted after revealing as the Mayor
Be the only guilty vote on a Traitor while being revealed as the Mayor
Kill a Lookout while their Eagle Eye is active
Prosecute a Cult Member
Prosecute a revealed Mayor who is a Cult Member
Kill a player with your Blood Lust
Kill a Veteran with your Blood Lust
Kill a Prosecutor with your Blood Lust
Kill a Vigilante with your Blood Lust
Kill a revealed Mayor with your Blood Lust
Silence the Town and kill a Veteran
Silence the Town and kill a Prosecutor
Silence the Town and kill a Vigilante
Silence the Town and stop a Tracker that was tracking you
Kill a Veteran with your minion
Kill a Knighted and Revealed Mayor with your minion
Perform an Autopsy on a corpse
Examine a player against your Autopsy results
Examine a player and find that they were the killer
Examine an Arsonist and find that they were the killer
Find two players to be on the same faction
Find two players to be on opposing factions
Check a players faction against a Revealed Mayor
Compare two players factions as a converted Cult Member
Be killed by a Serial Killer
Be killed by a Banshee
Be killed by a Vigilante as a converted Cult Member
Hex a player
Hex 5 players in a game
Win the game by Hexing all living players
Win the game by casting your final Hex on an Alerting Veteran
Track a killer during an Ice Storm
Track three kills in a game
Reveal a Serial Killer upon your death
Reveal a Cultist upon your death
Reveal a Mayor who was still hidden to the Town
Knight a revealed Mayor
Be the third person to Knight a player
Knight a Traitor while you are a Cult Member
Create an illusion of a player
Create an illusion while the Seeing Double spell is active
Create an illusion of a player who is dead
Convert a player to a Cult Member
Convert a Vigilante to a Cult Member
Convert a revealed Mayor to a Cult Member
Convert a Veteran on alert to a Cult Member
Be acquitted by a tie vote
Live to the 10th Day
Win by the Curse Spell