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