Here is the full list of all 32 Dex achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Sold all the antiques to Hank
Neutralized the TruBody gang
Had a taste of all the 'professionals'
Met the original
Drank more than 10 Energo Colas
Got crushed by an elevator
Showed THE Armagear hacker who's boss
Opened the safe on the Eclipse
Acquired the laser gun
Found Soto
Met the new BiofarmTech receptionist
Completed the game
Reunited ill-fated lovers
Reached level 15
Forced Mitchell to confront his past
Exposed Crash's identity to the world
Opened Ellie's eyes
Didn't leave anyone behind
Maximized a Major skill to level 6
Bested a war machine
Upgraded a software to its maximum level
Installed 7 implants
Defeated an old acquaintance for the second time
Reached level 10
Performed 20 Takedowns in a single playthrough
Helped an old man off the street
Picked 10 locks
Rescued Shen
Opened the safe in the Aphrodite
Performed a headshot
Reached level 5
Successfully used the Convince option in a dialog