Here is the full list of all 52 Streets of Rogue achievements.
Find the Alien
Win Election
Give someone a Cyanide Cocktail
Win an Arena fight
Find the Bad Ending
Fall off the edge of the map
Unlock playable character
Kill someone by throwing a Gravestone at them
Unlock elevator access
Win without winning election or neutralizing Mayor
Kill the Killer Robot
Electrocute someone in water
Poison a water body with Resurrection Shampoo
Complete Mayor Village
Neutralize Mayor
Kill a Vampire while playing a Werewolf
Have four status effects at once
Complete Uptown
Complete any Big Quest
Complete Downtown
Complete Park
Complete Industrial
Enslave a Slavemaster
Create a custom character
Nicely ask an NPC to leave a level
Complete Slums
Kill everyone in a level
Make a Refrigerator "Run"
Complete any floor
Complete tutorial