Here is the full list of all 23 Social Justice Warriors achievements.
Make the choice
Secure the ultimate favor of the Social Justice Sorcerer
Survive the Popular Troll
Wield the Social Justice Sorcerer's gift
Survive the Intellectual Troll
Survive the Monstrous Troll
Survive the Troll Warlord
Survive the Troll Assassin
Successfully wield all 6 Paladin attacks
Successfully wield all 6 Cleric attacks
Successfully wield all 6 Mage attacks
Successfully wield all 6 Rogue attacks
Successfully wield all 6 Champion attacks
Secure the ultimate favor of the Social Justice Bard
Secure the ultimate favor of the Social Justice Necromancer
Secure the ultimate favor of the Social Justice Ranger
Answer all the Social Justice Druid's riddles
...And Can Dual Wield?
Survive 9 trolls without sacrificing your values
Be remembered as a hero
Achieve great heights, then lose it all
It's only impossible until it happens
Everyone loses