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