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