Full list of all 80 Saints Row: The Third achievements worth 1,300 gamerscore. It takes around 30-35 hours to unlock all of the achievements in the base game.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 30 achievements worth 300 Gamerscore.
Completed Act 3 in one way, Cyrus Temple is a dead man.
Completed Act 1, killed Phillipe Loren, and destroyed the Tower.
Completed all Challenges, nice job!
Killed 25 Gang Members each with 'the Penetrator' and FIAJ, the best guilty pleasures available.
Taunted/Complimented 50 gang members, are you a fighter or a lover?
Fully upgraded one Weapon in each slot, by the Power of Saints Row!
Completed Act 3 in another way, General Killbane is dead.
Killed all of the Assassination targets, saved millions of lives... Maybe.
Completed 'Zombie Attack.' Did anyone say Braaaaaaaains?
Completed 'Murderbrawl XXXI', the Mask of Killbane, what did you do?
Played SR3 for 30+ hours, why stop now!?
Did your first nutshot and testicle assault, sack tapping is bad news kids!
Completed Act 2 and destroyed the Thermopylae, but fight is not over yet.
Completed 'http://deckers.die', 01100010011011110110111101100010.
Completed 'STAG Party' and decided Josh Birk's fate, we hope you chose wisely.
Delivered all Vehicle Theft targets to chop shops, you thief.
Took control of the entire Stanfield district area for the Saints.
Completed all City Takeover, Steelport is yours!
Completed all instances of Heli Assault.
Completed all instances of Mayhem.
Destroyed all Gang Operations.
Completed all instances of Trail Blazing.
Completed all instances of Snatch.
Took control of the entire Carver Island district for the Saints.
Completed all instances of Insurance Fraud.
Completed all instances of Escort.
Completed all instances of Professor Genki's Super Ethical Reality Climax.
100% of Collectibles found. Drugs, Sex, Cash, and Celebrity... What else is there?
Took control of the entire New Colvin district for the Saints.
Upgraded one Stronghold to its full glory, respect the new digs.
Completed all instances of Tank Mayhem.
Completed all instances of Trafficking.
Took control of the entire Downtown district for the Saints.
Completed 'The Ho Boat' and decided the Hos fate, do you feel proud of yourself?
Completed all instances of Guardian Angel.
Pimped out 10 vehicles.
Completed Act 1, killed Phillipe Loren, and kept the Tower.
Completed all of Pierce's City Takeover Introduction missions.
Completed 'Party Time' and got the Saints their first crib in Steelport.
25% of Collectibles found. Drugs, Sex, Cash, and Celebrity... What else is there?
Killed 50 brutes, they just wanted hugs you jerk!
Killed 1000 Gang Members.
50 quick vehicle hijacks, the Dukes would be proud.
Completed your first Challenge, it was a Challenge, right?
Explored every hood in Steelport, you've been around the world.
Bought your first Upgrade, now you have the action Kung Fu grip!
Completed 'I'm Free - Free Falling', landed safely in Steelport with a 9.0 from the Belgians.
Created and shared a character online, you're a part of the Saints Row community now!
Completed 'When Good Heists...', but got caught...
Play for at least 2 hours as a male character AND 2 hours as a female character.
Created a $150,000 combo worth of destruction in Sexy Kitten Yarngasm.
Feed 5 mascots to the fishes in Apocalypse Genki.
Killed all the mascots in Sad Panda Skyblazing.
You are the Genki Bowl Champ!
Landed at the feet of Big Joe Magarac.
Flew through all the rings in Sad Panda Skyblazing.
Destroyed 5 chase vehicles and kept Professor Genki from becoming annoyed.
Roasted 50 peds with the Genki Mobile’s flamethrower. Toasty!
Destroyed a mouse with a giant ball of yarn.
Finished both instances of Apocalypse Genki. Making you post-apocalyptic.
You successfully completed all 3 "Gangstas in Space" missions. That's a wrap!
You successfully performed all 3 vehicle stunts with the Aegean.
You destroyed 10 enemy spacecraft using the Aegean while the cameras were rolling.
You killed Space Brutina in an epic hangar battle.
You found every hidden clapboard backstage.
You killed 35 Space Amazons with your Laser Pistol.
You killed 7 Space Amazons with melee attacks.
You shot down every single spacecraft in the chase scene. Those things aren't cheap, ya know.
You killed 15 cameramen in an action sequence because you're a method actor.
You parachuted in on the second take and stuck the landing.
Defeated 15 enemies at Technically Legal using only melee attacks.
You successfully completed all 3 "The Trouble With Clones..." missions. Stripper pole!
Prevented any harm from coming to Johnny Tag on top of Magarac Bridge.
Killed a Brute with your bare hands (and some Saints Flow).
Shot down a helicopter with a Saints Flow fireball.
Completed mission 'Tour de Farce'.
Destroyed 5 Steelport Guard vehicles. Fool me once...
Treated 25 fans to a lovely potential case of anaphylactic shock.
Completed mission 'Weird Science'.
Road blocks are not a problem for you. You've made Jimmy happy.