Here is the full list of all 64 2064: Read Only Memories achievements.
Completed Ending Three
You finally found a use for it....
Completed Ending Four
Have a negative relationship with Turing by the end
Play through the game in a single session and never use a load or continue
Lexi resents you
The punks refuse to help you in your final quest
Jess refuses to help you in your final quest
TOMCAT resents you
Called in for backup
Completed Ending Two
Shoot past the security ROMs without taking damage
Fail to escape the drainage tunnels before the water rises too high
Got killed by Dekker
Use the Headphones in the ITEMS menu to play every song on the soundtrack
Completed Endless Christmas
Use Item on at least 100 things!
Completed Ending One
Have a positive relationship with Turing by the end
Turing died during Wintermute
Make friends with Lexi
Successfully navigate the drainage tunnels on the first try
Complete Chapter 5
Convince the punks to help you in your final quest
Convince Jess to help you in your final quest
Solve every puzzle without using the brick
Become friends with TOMCAT
You tried to actually do your job
Complete Flower Arc
Go on every drunken escapade
Order and drink every drink available at Stardust
Try at least half of Stardust's drink menu
Try 10 different kinds of Hassy
Complete Media Arc
You are very lucky!
Provoke a tough guy in the wrong part of town
That would have made sense, huh?
Talk to at least 100 things!
Learn a lot of wrestling moves
That's one way to stock your fridge
Use at least 100 things!
You just can't leave plants well enough alone
Fail to talk to Wilty enough to save it
Start a riot to clear the Genus protests
Look at a minimum of 100 things!
Find and listen through all of Turing's lectures
Bring Wilty back to outstanding health
Talk to Wilty enough to keep it alive
Complete Chapter 2
Kept a cool head and worked things out
Successfully trap a miscreant's taxi
Break up the Genus protests peacefully
Strike out at the club on Hybrid Night
Beat the final boss of Mega Phobetor
Complete Chapter 1
You got lost and annoyed the neighbors
Wilty is lucky Turing stepped in
Fail to convince Lexi in Chapter One and find another solution
Convince Lexi to help you with impressive speechcraft
Complete the Prologue
Puzzle your first puzzle!
Use the headphones to listen to the soundtrack
Brought along an unhealthy snack
Checked your inbox and the paper before you slept