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.
Taunt AND/OR Compliment 50 gang members.
Complete ALL Challenges.
Play for at least 2 hours as a male character AND 2 hours as a female character.
Fully upgrade one Weapon in each slot.
Complete Act 1 in one way.
Create and share a character online.
Kill 50 brutes.
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 Trail Blazing.
Complete all instances of Activities in Co-op.
Find 100% of all Collectibles.
Kill 25 Gang Members each with 'the Penetrator' AND the Fart in a Jar.
Destroy all Gang Operations in Steelport.
Complete all instances of Insurance Fraud.
Complete all City Takeover gameplay in the Stanfield district.
Complete Act 3 in one way.
Complete all instances of Mayhem.
Complete all instances of Escort.
Customize 10 vehicles.
Complete all instances of Snatch.
Complete all instances of Heli Assault.
Spend over 30 hours in Steelport.
Kill all of the hitman Assassination targets.
Complete all City Takeover gameplay in the New Colvin district.
Upgrade one Stronghold to its full glory.
Complete all instances of Professor Genki's Super Ethical Reality Climax.
Complete all City Takeover gameplay in the Downtown district.
Complete all instances of Trafficking.
Complete all instances of Tank Mayhem.
Find 25% of all Collectibles.
Beat all Missions in Co-op.
Complete Act 3 in another way.
Kill 1000 Gang Members.
Complete 'Murderbrawl XXXI'.
Complete 'Zombie Attack'.
Complete Act 2.
Complete 'STAG Party'.
Complete 'http://deckers.die'.
Complete 'The Ho Boat'.
Complete all instances of Guardian Angel.
Play SR3 Co-op for 5 hours.
Complete Act 1 in another way.
Hijack 50 vehicles - Dukes style.
Complete 'We've Only Just Begun'.
Do your first nutshot AND testicle assault.
Complete your first Challenge.
Explore every hood in Steelport.
Complete 'Party Time'.
Buy your first Upgrade from the Upgrade Store.
Complete 'I'm Free - Free Falling'.
Complete 'When Good Heists...'.
Roast 50 peds with the car’s flamethrower (in a single instance of Super Ethical PR Opportunity).
Kill all of the rooftop mascots (in a single instance of Sad Panda Skyblazing).
Destroy a mouse ATV during Sexy Kitten Yarngasm.
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).
Complete all activity instances in Genki Bowl VII.
Land on Magarac Island (in Sad Panda Skyblazing).
Cause $150,000 worth of damage in a single Sexy Kitten Yarngasm combo.
Destroy 5 chase vehicles (in a single instance of Super Ethical PR Opportunity).
Finish both instances of Apocalypse Genki.
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.
Collect all 6 hidden clapboards.
Kill 7 Space Amazons with melee attacks.
Kill 35 Space Amazons with the Laser Pistol.
Destroy all enemy spacecraft during the chase scene.
Kill 15 cameramen.
Land on the Parachute Target during the rescue scene.
Shoot down a helicopter with a Saints Flow fireball.
Hold Your Position at Technically Legal using only melee attacks.
Complete all missions for "The Trouble With Clones".
Prevent Johnny Tag from taking damage on the Magarac Bridge.
Kill a Brute using only melee damage while under the influence of Saints Flow.
Complete mission 'Tour de Farce'.
Destroy 5 Steelport Guard vehicles during mission 'Tour de Farce'.
Spray 25 rabid fans with the Swarmitron.
Complete mission 'Weird Science'.
Destroy 45 Police and Swat Vehicles while protecting Jimmy's car.