Here is the full list of all 49 Deus Ex: Human Revolution achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Complete Deus Ex: Human Revolution without anyone dying by your hand. (Boss fights do not count.)
Complete Deus Ex: Human Revolution without setting off any alarms.
Read all 29 unique XP books within a single playthrough.
You found and read the secret message. Now you know too much...
You convinced Mengyao to spill the beans on the mysterious Hyron Project.
Against all odds, you saved Faridah Malik's life.
You really nailed your case against Lee Hong.
Perform 50 takedowns within the same playthrough. (Civilians don't count.)
Greedy bastard. You accepted O'Malley's blood money and let him go.
You kept Megan's bracelet for yourself. Apparently, letting go really is the hardest part.
Seems you like playing with balls, eh?
You found all the hidden story items in Megan's Office. Point-and-Click much?
Complete Deus Ex: Human Revolution at its hardest setting.
Follow Pritchard's lead to uncover the truth.
Protect a client's interests by performing a less-than-hostile takeover.
Maybe next time, Jacob will use a more complex code when arming a bomb.
You granted a dying man his final request.
You sent Diamond Chan on the trip of a lifetime.
Experience all the different endings that Deus Ex: Human Revolution has to offer.
You watched the entire credit list and saw the surprise at the end.
Complete Deus Ex: Human Revolution.
You defeated Zhao Yun Ru and by doing so, destroyed the Hyron Project.
You pointed out the flaws in his logic to millionaire Hugh Darrow.
You defeated Jaron Namir, Leader of Belltower's Elite Special Operations Unit.
Knock out at least 100 enemies in a single playthrough.
Descend into the bowels of an urban jungle and confront a warrior-priest.
You talked Doctor Isaias Sandoval out of suicide.
Help Officer Nicholas take out the trash.
You convinced the smooth-talking politician Bill Taggart to tell the truth in public.
Fully upgrade one of your weapons.
You defeated Yelena Federova, elite member of a secret mercenary hit squad.
Successfully hack at least 50 devices within the same playthrough.
Upgrade your first weapon of choice.
It may take some sleuthing, but justice must be served.
Fully upgrade your first augmentation of choice.
Help the Hive Bartender settle a tab.
You paid poor Jaya's debt in full. How very... humane... of you.
You convinced a fast-talking bartender to let you see Tong Si Hung.
Help a lady in the oldest of professions clean house.
Deal with Mr. Carella's indiscretion.
Put a grieving mother's doubts to rest.
Deal with the man in the shadows.
You defeated Lawrence Barrett, elite member of a secret mercenary hit squad.
You convinced Zeke Sanders to let his hostage go.
You convinced Wayne Haas to let you into the morgue.
You had an argument with your boss, David Sarif, and won.
You made it through an entire hostile area without making so much as a squeak.
Perform your first Hack successfully.
Perform your first Takedown. Civilians don't count, so be nice.