HaTzu-

You should be looking for Timmy Build a gazebo in a Single Player game

Longest Wall Place a blueprint for a super long wall

Hole In One Complete "Golf"

Enforcer Get at least 15,000 points in one Echo round

Holy Inquisition Met the Lord Inquisitor. An unwavering kind of guy. You definitely wouldn't want to be his enemy.

Chill Out Defeat 5 mobs with a single Ice Wand attack.

Extinguisher In the Sewer map, kill 5 enemies in 1 wave by setting them on fire then extinguishing them

King of the Arena Complete all four-star missions in the Mirage Arena.

Pandamonium Complete the Panda Plateau secret mission.

Green Thumb Plant all 3 seed types

Survive The Forest Finish Game

Seek & Destroy Get 2 Kills with a single remote controlled Throwing Knife from at least 50 meters away in Campaign

Imposing arsenal Open and buy final versions of all weapons

Provocateur Collected and assembled the Battledress of the Provocateur. ("Leliana's Song" downloadable content)

Chain of Memories Master Obtain all trophies.

Seal the Deal Complete a Triumph Seal.

Pack-A-Punch-ectomy In Revelations, recover the Pack-a-Punch machine from its abductor.

Come Back To Me Kill a Sectoid who is currently mind controlling a squadmate

Hoarder Have a total of at least 250,000 points in Echoes Mode's total high score

Chef's Soul You can make any type of food. That's pretty cool, right?
Well, eat up and get back to battle!

Savage Slayer Complete all Unversed battle missions with the highest rank.

Skewer the Winged Beast In Under the Radar, have the SAM target itself and the helicopter

Villains' Vendetta Win the Villains' Vendetta battle in the Mirage Arena.

Keeper of the Vigil Saved Vigil's Keep ("Dragon Age: Origins - Awakening" expansion)

I’ve seen some things… In Kino Der Toten, visit every location the teleporter can take you to.

Lone Champion Complete Lone Fortress on Adventure or Apocalypse difficulty.

Wrapped Up Complete "Thermal"

Single Impact Defeat The Scale

I think I'll buy the world! Spent a total of 100,000,000 or more Beli at the Beli Shop.

Fill your dark soul with light Free all of the Lost Souls in Dante's story

Think She'll Notice? Destroy all of the cars in the mansion garage in 'Oligarch'

Hell Razor Kill a Burnout using the helicopter that arrives in Crash Site

Have You Tried Turning it Off and On? Use a Shock Stick to disable an enemy Sentry Gun

World Changing Complete 50 Event Quests.

A Mere Shell Defeat the Vanitas Remnant.

Deer in the Headlights Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

Supernova Get 3 Stars on 20 different Echoes

Cornelia's Hope Completed the mission "Cornelia's Hope."

David vs Goliath In Checkmate, destroy the APC using an RC-XD

Tick Tock Climb the Clock Tower in 40 seconds in "Dark"

Pursuit of Knowledge Filled 80% of the Datalog.

Even here Fixed the garden. You'll spend a lot of time here...

Helo Hat Trick Destroy each objective helicopter in 'Reactor' with a different Armament

Fast Track On Mean Street, kill all the snipers on the rooftop before the DNA bomb explodes

The Warrior: Aqua Learn all of Aqua's Finish Commands.

Rapid Reflexes Get 5 Headshot Kills during a single use of the Adrenaline Stim in Campaign

Bane of Thedas Handed victory to the archdemon by killing Ferelden's last Grey Warden. ("Darkspawn Chronicles" downloadable content)

Snow Angel Execute the forest sniper in 'Frozen Tundra' with a takedown

Hitchhiker Defuse the bomb on the truck in 'Gora Dam' while it is in motion

In the Belly of the Beast In Zetsubou No Shima, survive getting consumed.