Full list of all 83 Saints Row: The Third achievements. It takes around 50-60 hours to unlock all of the achievements in the base game on Windows.
The base game contains 53 achievements, and there are 3 DLC packs containing 30 achievements.
Steal and deliver all Vehicle Theft targets.
Kill all of the hitman Assassination targets.
Complete ALL Challenges.
Complete all instances of Activities in Co-op.
Beat all Missions in Co-op.
Complete Act 3 in one way.
Find 100% of all Collectibles.
Taunt AND/OR Compliment 50 gang members.
Complete all City Takeover gameplay in the Downtown district.
Complete all City Takeover gameplay in the entire city of Steelport.
Complete all City Takeover gameplay in the Stanfield district.
Complete all instances of Snatch.
Complete all City Takeover gameplay in the Carver Island district.
Kill 25 Gang Members each with 'the Penetrator' AND the Fart in a Jar.
Destroy all Gang Operations in Steelport.
Complete Act 3 in another way.
Complete all City Takeover gameplay in the New Colvin district.
Complete all instances of Trafficking.
Complete all instances of Escort.
Complete all instances of Mayhem.
Do your first nutshot AND testicle assault.
Complete Act 1 in another way.
Play for at least 2 hours as a male character AND 2 hours as a female character.
Kill 50 brutes.
Complete all instances of Insurance Fraud.
Complete all instances of Tank Mayhem.
Fully upgrade one Weapon in each slot.
Spend over 30 hours in Steelport.
Complete 'Murderbrawl XXXI'.
Complete all instances of Professor Genki's Super Ethical Reality Climax.
Customize 10 vehicles.
Complete all instances of Heli Assault.
Complete 'Zombie Attack'.
Upgrade one Stronghold to its full glory.
Complete Act 2.
Complete 'STAG Party'.
Complete 'http://deckers.die'.
Kill 1000 Gang Members.
Find 25% of all Collectibles.
Complete 'The Ho Boat'.
Explore every hood in Steelport.
Complete all instances of Guardian Angel.
Complete all instances of Trail Blazing.
Complete your first Challenge.
Complete Act 1 in one way.
Complete 'We've Only Just Begun'.
Play SR3 Co-op for 5 hours.
Hijack 50 vehicles - Dukes style.
Complete 'Party Time'.
Buy your first Upgrade from the Upgrade Store.
Create and share a character online.
Complete 'I'm Free - Free Falling'.
Complete 'When Good Heists...'.
Destroy 5 chase vehicles (in a single instance of Super Ethical PR Opportunity).
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).
Complete all activity instances in Genki Bowl VII.
Land on Magarac Island (in Sad Panda Skyblazing).
Throw 5 mascots into the water (in a single instance of Apocalypse Genki).
Finish both instances of Apocalypse Genki.
Roast 50 peds with the car’s flamethrower (in a single instance of Super Ethical PR Opportunity).
Cause $150,000 worth of damage in a single Sexy Kitten Yarngasm combo.
Destroy a mouse ATV during Sexy Kitten Yarngasm.
Collect all 6 hidden clapboards.
Kill 7 Space Amazons with melee attacks.
Land on the Parachute Target during the rescue scene.
Kill 15 cameramen.
Complete all missions for Gangstas in Space.
Perform all vehicle stunts with the Aegean.
Destroy 10 enemy spacecraft with the Aegean while filming.
Kill Space Brutina.
Kill 35 Space Amazons with the Laser Pistol.
Destroy all enemy spacecraft during the chase scene.
Hold Your Position at Technically Legal using only melee attacks.
Prevent Johnny Tag from taking damage on the Magarac Bridge.
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.
Complete all missions for "The Trouble With Clones".