Full list of all 60 Omerta: City of Gangsters achievements worth 1,250 gamerscore.
The base game contains 50 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 10 achievements worth 250 Gamerscore.
Finished the game
Purchased 13 unique Weapons in the Campaign
Had a gang member with 16 or more Base Action Points
Had a gang member with 20 or more Critical Chance.
Had a gang member with 20 or more Base Movement Points.
Hit 5 characters with an area attack
Completed Act 2
Unlocked 15 gang members
Shoved an enemy within the area of a fire bomb
Destroyed 4 cover objects with a single shotgun attack
Used Rage 3 times with the same character in a single battle
Hit 3 vulnerable enemies with a single Tommy Gun attack
Inflicted 100 damage or more to an enemy with a single attack
Intimidated a panicked enemy
Killed an enemy with a revolver retaliation shot
Killed 2 enemies in the same turn with a pistol
Hit an enemy with a grenade
Hit 3 different enemies in the same turn with knuckles
Won a combat encounter with 4 characters in your party wielding melee weapons
Hit an enemy with the Slice and Dice knife attacks in the same turn
Bandaged an incapacitated character
Killed 3 enemies with a single attack
Damaged 2 enemies with a single bat attack
Removed 2 negative conditions with First Aid
Had a gang member with 200 or more health.
Burned 3 buildings in a single mission
Stockpiled 200 Firearms
Completed Act 1
Completed 15 Jobs in a single mission
Purchased a Unique Weapon in the Campaign
Killed an enemy at full health with a single attack
Had a team of 6 gangsters in the campaign
Gained 100 Feared Rating
Framed another criminal during a police investigation
Won a combat encounter with three incapacitated gang members at the end
Damaged an enemy with a booby trap
Gained 100 Liked Rating
Had a building at 200% efficiency
Completed 5 Jobs in a single mission
Hit with an attack that has 5% hit chance
Missed with an attack that has 95% hit chance.
Laundered $10,000 Dirty Money in a single mission
Owned 10 businesses at the same time
Bought out an independent business
Won a Cooperative multiplayer mission.
Won 25 multiplayer missions
Won a combat encounter with 4 party members above 75% health
Won a combat encounter with 4 party members at full health
Won a Competitive multiplayer mission.
Completed the "Welcome to Atlantic City" mission
Set 5 enemies on fire with a Flamethrower in a single turn
Interrupt and hit 3 different enemies with a Machine Gun in the same battle
Hit 3 times with a single Rose Petals Katana attack
Have 6 gang members with sports cars
Defeat a rival gang within 10 minutes
Have a fully upgraded Hideout
Complete the "Japanese Incentive" Act 1
Complete the "Japanese Incentive" Act 2
Complete the "Japanese Incentive" Act 3
Complete the "Japanese Incentive" Act 4