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