Complete the tactical tutorial

Kill a Sectoid who is currently mind controlling a squadmate

Beat a Retaliation mission with no more than 3 civilian deaths

Kill an alien ruler while it attempts to escape

Upgrade a weapon

Overthrow the aliens on Legend difficulty

Raise a Templar to maximum Focus level, spend it all, and reach the max again in a single mission

Purchase all of the final tier Hunter Weapons

Build a radio relay on every continent

Recover the Forge Item

Completely upgrade a beam weapon with superior grade weapon upgrades

Kill an alien ruler the first time you encounter it

Complete a mission with three or more SPARK units in the squad

Complete a successful ambush

Make contact with a region

Apply a PCS upgrade to a soldier

Complete the Lost and Abandoned mission

Kill an enemy with a hacked turret

Cause an enemy to fall to its death

Permanently defeat one of the Chosen

Earn a second tier hack reward

Outfit a SPARK unit with the highest tier weaponry and armor

Recover the Blacksite Data

Upgrade a facility

Use a ruler armor ability against an alien ruler

Beat a mission in June or later using only Rookies

Use all ruler armor abilities in a single mission

Kill 3 enemies in a single turn, with a single soldier, without explosives

Complete 'The Lazarus Project' legacy operation with a gold medal

Beat the Lost Towers mission

Overthrow the aliens on Commander difficulty

Complete a Local Challenge

Beat the game on Commander+ difficulty without buying a Squad Size upgrade

Skulljack each different type of ADVENT soldier (does not have to be in same game)

Complete a random legacy operation

Complete the 'Avenger Assemble' legacy operation with a gold medal

Get 15 Headshots against Lost in a single turn

Kill the Viper Ruler

Build Resistance Comms

Form a level 3 bond between two soldiers

Get four kills from Shadow mode with a Reaper in a single mission

Raise XCOM's influence with all three factions to High in a single game

Sabotage an alien facility

Cause an enemy to die in a vehicle explosion

Kill a Berserker in melee combat

Skulljack an ADVENT Officer

Perform three offensive actions against the same target with a Skirmisher in a single turn

Kill all alien rulers in a single game

Sell goods worth 1000 supplies to the Black Market (Can span multiple games)

Build a facility in every Avenger slot

Build an experimental item in the Proving Grounds

Complete a single player campaign with Tactical Legacy Pack content

Evacuate a soldier whose bleed-out timer is still running

Kill 500 aliens. (does not have to be in same game)

Kill an enemy with every heavy weapon in the game (Doesn't have to be in the same game)

Kill an enemy primed Derelict MEC before it can self-destruct

A SPARK unit survives a mission it started with less than half health

Recover a Codex Brain

Complete the 'Blast From the Past' legacy operation with a gold medal

Kill the Berserker Ruler

Kill a Sectopod on the same turn you encounter it

Kill the Archon Ruler

Defeat a robotic enemy with a SPARK unit

Complete the 'It Came From the Sea' legacy operation with a gold medal

Get all of the continent bonuses available in a single campaign

Beat the game on Commander+ difficulty by July 1st (July 15th for War of the Chosen)

Beat a mission on Commander+ with a squad composed entirely of soldiers of the same class (but not Rookie)

Hack and take control of a Sectopod

Investigate the Abandoned Research Facility

Complete a Rumor

Rescue a soldier who was captured by the Chosen

Complete a mission with all Tired soldiers and no casualties

Create the Commander's Avatar

Beat the game on Commander+ difficulty in Ironman mode

Beat the final mission using only conventional gear

Overthrow the aliens at any difficulty level

Build the Shadow Chamber

Promote a SPARK unit to Champion rank

Hit three shots on a single turn with a SPARK unit after using its Overdrive ability

Defeat an Avatar with a SPARK unit

Complete a Skirmish Mission

Build a SPARK unit

Kill a Viper who is strangling a squadmate

Kill an Avatar

Recover the Psi Gate

Complete the Avatar Autopsy

Beat the game on Commander+ without losing a soldier