Full list of all 82 Gears of War 3 achievements worth 2,000 gamerscore. It takes around 1000 hours to unlock all of the achievements in the base game.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 7 DLC packs containing 32 achievements worth 1,000 Gamerscore.
You are the ultimate Gear!
Earned the Onyx "War Supporter" medal.
Complete all Acts in 4 player Co-op on any difficulty.
Complete all Acts in Co-op on any difficulty.
Earned the Silver "Number 1" medal.
Reached level 50.
Earned an Onyx medal.
Completed all campaign Acts on Insane Difficulty.
Earned the Bronze "Force Multiplier" medal.
Executed your enemies with variety and style.
Completed all campaign Acts on Casual or Normal Difficulty.
Completed all campaign Acts on Hardcore Difficulty.
Killed Myrrah.
Rescued Adam Fenix from captivity.
Recovered all 42 Collectibles.
Recovered all 15 COG Tags.
Turned off the Maelstrom device.
Passed under the Maelstrom and found Azura.
Launched the sub.
Maxed the Consecutive Match Bonus in Versus multiplayer.
Your respect for the dead earned you access to Griffin's special weapons stash.
Completed one match in all six Versus multiplayer modes.
Killed 10 enemies in Team Deathmatch.
Found enough fuel to get to Endeavor naval base.
Reached level 25.
Recovered 20 of 42 Collectibles.
Survived all 50 waves of Horde.
Earned the Bronze "Loot Courtesan" medal.
Found and activated the fuel pump.
Drove from Anvil Gate to Mercy.
Defeated the Lambent Berserker.
Defended Anvil Gate from the Locust siege.
Arrived safely, kinda, at Anvil Gate.
Grabbed a Locust Gas Barge to travel to Anvil Gate.
Completed 5 Arcade Campaign chapters in co-op.
Discovered the location of Adam Fenix.
Wreaked vengence upon humanity!
Reached level 15.
Blew up the Lambent Leviathan from the bridge.
Defended and escaped from Cougar Stadium.
Recovered 5 of 42 Collectibles.
Found food and ammo in Hanover.
Defended the Raven's Nest from Lambent Leviathan.
Woke up from a bad dream.
Reached level 10.
Executed an infected player and is now turning Lambent.
Completed the first 12 waves of Beast.
Reached level 5.
Survived the first 10 waves of Horde.
Your skill and experience means you’re ready for Standard Versus multiplayer.
Found new places to destroy all humans.
Showed your friends the Horde Command Pack sights.
We are the elite Onyx Guard!
Good ROI on that Silverback upgrade.
The Hammer of Dawn is now online!
Honored the memory of Zeta Squad in 10 matches of Versus.
As RAAM, made sure Minh never forgets that day outside the House of Sovereigns.
Ignored all Loader safety guidelines and killed 10 Locusts.
Completed "RAAM's Shadow" in 4 player co-op.
Used the Mauler shield to kill 10 Gears that had the temerity to fire upon you and your General.
Showed 50 Locusts the meaning of sky-fire with HOD Command Center.
Completed "RAAM's Shadow" in Arcade Campaign.
As RAAM, ripped 50 Gears to shreds with your Kryll.
Completed "RAAM's Shadow" in Standard Campaign.
Defeated the first 10 waves of Horde with every member of Zeta in your party.
Level 100 - so nice, I did it twice.
Level 100 and going back for more!
Won a Versus multiplayer match as a team of five Savage Marauders (any mode).
Won a Versus multiplayer match as a team of five Recruit Claytons (any mode).
Completed all 12 waves of Beast on all Fenix Rising maps.
Completed all 50 waves of Horde on any of the Fenix Rising maps.
Earned all 132 combat ribbons.
Led by example and killed 10 opponents as Guardian leader.
The $!*@# was taken down with extreme force.
Completed all 50 waves of Horde on any of the Forces of Nature maps.
Completed all 12 waves of Beast on all Forces of Nature maps.
Guardian is back!
Still standing after 20 waves - you're a natural!
Found the right man for the job!
Cleaved 25 enemies with a hidden weapon.
Captured and "released" 20 opponents as the Savage Hunter.
Maxed out all of the Horde fortifications.