Dragon Age: Origins Cheats

Sacrilegious (20): Sided with the Cult of Andraste in "The Urn Of Sacred Ashes"
Ceremonialist (20): Defied the Cult of Andraste in "The Urn of Sacred Ashes"
Bhelen's Ally (20): Sided with Bhelen in "A Paragon of Her Kind"
Harrowmont's Ally (20): Sided with Harrowmont in "A Paragon of Her Kind"
Liberator (20): Destroyed the Anvil of the Void
Pragmatist (20): Preserved the Anvil of the Void
Heavy Hitter (10): Main character inflicted 250 damage with a single hit
Bloodied (10): Completed an origin story without the main character ever falling in battle
Traveler (35): Set foot in every area in the game
Master of Arms (25): Main character achieved level 20 as a warrior
Shadow (25): Main character achieved level 20 as a rogue
Archmage (25): Main character achieved level 20 as a mage
Pilgrim (10): Completed a Chanter's Board quest
Grey Warden (20): Killed 100 darkspawn
Master Warden (25): Killed 500 darkspawn
Blight-Queller (25): Killed 1000 darkspawn
Tinkerer (10): Crafted an item
Persuasive (10): Succeeded at five difficult Persuasion attempts
Silver Tongued (20): Succeeded at 25 difficult Persuasion attempts
Bully (10): Succeeded at five difficult Intimidate attempts
Menacing (20): Succeeded at 10 difficult Intimidate attempts
First Knight (10): Experienced the thrill of romance with Alistair
Witch Gone Wild (10): Experienced the thrill of romance with Morrigan
Easy Lover (10): Experienced the thrill of romance with Zevran
Wine, Woman, and Song (10): Experienced the thrill of romance with Leliana
Veteran (25): Main character learned a specialization
Elite (30): Main character learned two specializations
Secret Achievement (50): Continue playing to unlock this secret achievement.
Secret Achievement (50): Continue playing to unlock this secret achievement.
Secret Achievement (30): Continue playing to unlock this secret achievement.
Secret Achievement (30): Continue playing to unlock this secret achievement.

The Stone Prisoner DLC Achievements
Rock and a Hard Place (25): Completed "The Golem in Honnleath"
Stone's Lament (25): Completed "A Golem's Memories"

Warden's Keep DLC Achievements
Diabolist (25): Took advantage of Avernus's research
Master of the Peak (25): Completed "Soldier's Peak"

Leveling Up Early in the Game
In Ostargar, there is a mission called Tainted Blood. Simply collect the three Vials of Darkspawn Blood but NOT the Grey Warden Treaties. Return to camp and talk to Duncan and report "We have the blood, but not the scrolls." This will exit out of the conversation, but WILL get the experience for the mission. Rinse and repeat until you are at the desired level. It takes very little time to shoot up to lvl 25(cap) if you press [X] to skip the conversations and speed up the process.

Get specialization manuals for FREE
FInd a vendor that has the manual you want. Save your game. Buy the manual to unlock the specialization. Now reload your save, and it will still be unlocked, and you will have your money back. The manual will also be missing from the merchants inventory.