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.
Complete all City Takeover gameplay in the New Colvin district.
Complete all City Takeover gameplay in the entire city of Steelport.
Complete all City Takeover gameplay in the Downtown district.
Beat all Missions in Co-op.
Complete all City Takeover gameplay in the Carver Island district.
Destroy all Gang Operations in Steelport.
Complete all City Takeover gameplay in the Stanfield district.
Complete all instances of Insurance Fraud.
Complete all instances of Activities in Co-op.
Complete all instances of Trafficking.
Complete all instances of Heli Assault.
Complete all instances of Snatch.
Complete all instances of Trail Blazing.
Complete all instances of Mayhem.
Complete all instances of Tank Mayhem.
Complete all instances of Escort.
Complete all instances of Professor Genki's Super Ethical Reality Climax.
Fully upgrade one Weapon in each slot.
Taunt AND/OR Compliment 50 gang members.
Complete Act 3 in one way.
Complete Act 3 in another way.
Kill 25 Gang Members each with 'the Penetrator' AND the Fart in a Jar.
Complete 'Murderbrawl XXXI'.
Complete 'Zombie Attack'.
Complete Act 2.
Complete 'http://deckers.die'.
Complete all instances of Guardian Angel.
Complete 'STAG Party'.
Create and share a character online.
Spend over 30 hours in Steelport.
Complete 'The Ho Boat'.
Upgrade one Stronghold to its full glory.
Complete Act 1 in another way.
Kill 1000 Gang Members.
Complete 'We've Only Just Begun'.
Hijack 50 vehicles - Dukes style.
Find 25% of all Collectibles.
Play for at least 2 hours as a male character AND 2 hours as a female character.
Play SR3 Co-op for 5 hours.
Explore every hood in Steelport.
Complete your first Challenge.
Do your first nutshot AND testicle assault.
Buy your first Upgrade from the Upgrade Store.
Complete 'Party Time'.
Complete 'I'm Free - Free Falling'.
Complete 'When Good Heists...'.
Complete Act 1 in one way.
Kill all of the hitman Assassination targets.
Steal and deliver all Vehicle Theft targets.
Find 100% of all Collectibles.
Complete ALL Challenges.
Kill 50 brutes.
Customize 10 vehicles.
Complete all activity instances in Genki Bowl VII.
Fly through all of the rings (in a single instance of Sad Panda Skyblazing).
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.
Finish both instances of Apocalypse Genki.
Destroy 5 chase vehicles (in a single instance of Super Ethical PR Opportunity).
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).
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.
Land on the Parachute Target during the rescue scene.
Collect all 6 hidden clapboards.
Kill 7 Space Amazons with melee attacks.
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.
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.