Gameranx has a complete guide on how to unlock each and every achievement in Gears of War 3. However, if you need help in the campaign, check out our Gears of War 3 walkthrough but if you're still on the edge of picking up the new Epic title you can check out our review here.
Unless you want to spend more time wandering aimlessly while struggling to figure out what does what, read on, so you'll be able to get those achievements out of the way and hop right into Horde mode where everyone else is.
Marcus, It's Your Father
Swimmin' in Glowie Gravy
We Struck Gold, Son!
Beat Act 1 Chapter 3
My Turf! Cougars Territory!
Beat Act 1 Chapter 5
Putting it Scientifically
Beat Act 1 Chapter 6
Okay, Now We Find Hoffman
Beat Act 2 Chapter 1
Oh Yeah, It's Pirate Time
Beat Act 2 Chapter 5
Thanks For Flying GasBag Airways
Beat Act 2 Chapter 7
Anvil Gate's Last Resort
Beat Act 3 Chapter 1
Was it Good For You?
Beat Act 3 Chapter 2
Lost Your Good Driver Discount
Beat Act 3 Chapter 3
Brothers to the End
Beat Act 3 Chapter 5
Think You Can Handle That?
Beat Act 4 Chapter 3
Baird's Favorite Kind of Toy
Beat Act 4 Chapter 5
Welcome To -redacted-
Beat Act 4 Chapter 5
Look at That, Instant Summer
Beat Act 5 Chapter 2
Ok. Faith. Yeah. Got It.
Beat Act 5 Chapter 5
You're Dead! Now Stay Dead!
Beat Act 5 Chapter 6
Ready for More
Complete the campaign on Casual or Normal difficulty
Ain't My First Rodeo
Complete the campaign on Hardcore Difficulty
That's Just Crazy
Complete the campaign on Insane Difficulty
Collector
Recover 5 Campaign Collectibles
Pack Rat
Recover 20 Campaign Collectibles
Hoarder
Recover 42 Campaign Collectibles
Remember the Fallen
Recover 15 COG Tags
My Fellow Gears
Complete Campaign in Co-op
We Few, We Happy Few…
Complete all Campaign in 4 player Co-op
Level 5
Reach level 5
Level 10
Reach level 10
Level 15
Reach level 15
Level 25
Reach level 25
Level 50
Reach level 50
Judge, Jury and Executioner
Use every execution finishing move
Wreaking Locust Vengeance
Get a kill during every Locust monster in Beast mode
Enriched and Fortified
Complete 50 waves of Horde mode on any difficulty
It's All About the Loot!
Earn a Bronze Loot Courtesan medal
All for One, One for All
Earn a Bronze Force Multiplier medal
First Among Equals
Earn a Silver Number 1 medal
Award Winning Tactics
Earn a Onyx medal
Seriously 3.0
Reach level 100 and also earn every Onyx medal
Welcome to Versus
Kill 10 enemies in Team Deathmatch
The Versus Sampler Platter
Complete on match of all versus game modes
Welcome to Horde Mode
Survive the first 10 waves of a horde mode
Welcome to Beast Mode
Survive all 12 waves of a Beast mode
Welcome to Arcade Mode
Complete 5 Arcade Campaign chapters in co-op
Welcome to the Big Leagues
Demonstrate skill in Casual Versus multiplayer
Wait, What Time is it?
Earn a maximum Consecutive Match Bonus in Versus multiplayer
Lambency
Execute an Epic employee, or anyone who already has the Lambency achievement
Socialite
Earn a Onyx War Supporter medal
Respect for the Dead
Unlock Griffin's special weapons stash
