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