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