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.
Played SR3 for 30+ hours, why stop now!?
Completed all instances of Tank Mayhem.
Killed 25 Gang Members each with 'the Penetrator' and FIAJ, the best guilty pleasures available.
Pimped out 10 vehicles.
Completed Act 3 in one way, Cyrus Temple is a dead man.
Fully upgraded one Weapon in each slot, by the Power of Saints Row!
Completed Act 3 in another way, General Killbane is dead.
Completed 'Murderbrawl XXXI', the Mask of Killbane, what did you do?
Killed all of the Assassination targets, saved millions of lives... Maybe.
Completed 'Zombie Attack.' Did anyone say Braaaaaaaains?
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.
Completed 'The Ho Boat' and decided the Hos fate, do you feel proud of yourself?
Upgraded one Stronghold to its full glory, respect the new digs.
Completed all instances of Guardian Angel.
Killed 1000 Gang Members.
25% of Collectibles found. Drugs, Sex, Cash, and Celebrity... What else is there?
Completed Act 1, killed Phillipe Loren, and destroyed the Tower.
Completed Act 1, killed Phillipe Loren, and kept the Tower.
Explored every hood in Steelport, you've been around the world.
Completed your first Challenge, it was a Challenge, right?
50 quick vehicle hijacks, the Dukes would be proud.
Completed all of Pierce's City Takeover Introduction missions.
Bought your first Upgrade, now you have the action Kung Fu grip!
Completed 'Party Time' and got the Saints their first crib in Steelport.
Did your first nutshot and testicle assault, sack tapping is bad news kids!
Completed 'I'm Free - Free Falling', landed safely in Steelport with a 9.0 from the Belgians.
Completed 'When Good Heists...', but got caught...
Complete all City Takeover gameplay in the Downtown district.
Complete all City Takeover gameplay in the New Colvin district.
Complete all City Takeover gameplay in the Stanfield district.
Complete all City Takeover gameplay in the Carver Island district.
Complete all City Takeover gameplay in the entire city of Steelport.
Complete all instances of Insurance Fraud.
Complete all instances of Trafficking.
Complete all instances of Heli Assault.
Complete all instances of Mayhem.
Complete all instances of Escort.
Complete all instances of Snatch.
Complete all instances of Trail Blazing.
Complete all instances of Professor Genki's Super Ethical Reality Climax.
Find 100% of all Collectibles.
Complete ALL Challenges.
Play for at least 2 hours as a male character AND 2 hours as a female character.
Taunt AND/OR Compliment 50 gang members.
Kill 50 brutes.
Destroy all Gang Operations in Steelport.
Create and share a character online.
Roast 50 peds with the car’s flamethrower (in a single instance of Super Ethical PR Opportunity).
Destroy 5 chase vehicles (in a single instance of Super Ethical PR Opportunity).
Land on Magarac Island (in Sad Panda Skyblazing).
Kill all of the rooftop mascots (in a single instance of Sad Panda Skyblazing).
Fly through all of the rings (in a single instance of Sad Panda Skyblazing).
Throw 5 mascots into the water (in a single instance of Apocalypse Genki).
Finish both instances of Apocalypse Genki.
Destroy a mouse ATV during Sexy Kitten Yarngasm.
Cause $150,000 worth of damage in a single Sexy Kitten Yarngasm combo.
Complete all activity instances in Genki Bowl VII.
Land on the Parachute Target during the rescue scene.
Destroy all enemy spacecraft during the chase scene.
Kill 15 cameramen.
Kill Space Brutina.
Collect all 6 hidden clapboards.
Kill 35 Space Amazons with the Laser Pistol.
Kill 7 Space Amazons with melee attacks.
Destroy 10 enemy spacecraft with the Aegean while filming.
Perform all vehicle stunts with the Aegean.
Complete all missions for Gangstas in Space.
Defeat 15 enemies at Technically Legal using only melee attacks.
Destroy 45 Police and Swat Vehicles while protecting Jimmy's car.
Complete mission 'Weird Science'.
Spray 25 rabid fans with the Swarmitron.
Destroy 5 Steelport Guard vehicles during mission 'Tour de Farce'.
Complete mission 'Tour de Farce'.
Shoot down a helicopter with a Saints Flow fireball.
Kill a Brute using only melee damage while under the influence of Saints Flow.
Prevent Johnny Tag from taking damage on the Magarac Bridge.
Complete all missions for "The Trouble With Clones..."