Hero Character: Sid Meier
During customization of a soldier, changing the first name to "Sid" and last name to "Meier." This will prevent acquisition of achievements, but will transform the soldier into a Psionic, Psi-armored, plasma rifle wielding, HIGH hp support hero unit.
Trophies: Slingshot DLC
There are 2 Bronze Trophies, 2 Silver Trophies, and 1 Gold Trophy.
- All Aboard (Silver) - Complete Confounding Light with more than 3 turns left on the timer.
- Bait the Hook (Bronze) - Complete Confounding Light.
- New Friend (Bronze) - Complete Friends in Low Places.
- Rising Dragon (Gold) - Take your new ally into the final challenge.
- The Bigger They Are (Silver) - Complete Gangplank.
Main Game Trophies
There are 38 Bronze Trophies, 10 Silver Trophies, 2 Gold Trophies, and 1 Platinum Trophy.
- ...and Practice (Bronze) - Build a Workshop.
- A Continental Fellow (Silver) - Win the game from each of the 5 starting locations.
- Ain't No Cavalry Comin' (Silver) - Have a soldier survive every mission in a full game.
- All Employees Must Wash Hands... (Bronze) - In a single game, complete every Autopsy.
- All Together Now (Bronze) - Get satellite coverage over every country on one continent.
- And Hell's Coming With Me (Bronze) - Successfully assault an Overseer UFO.
- And So It Begins... (Bronze) - Complete the tutorial mission.
- Angel of Death (Bronze) - Kill an alien while flying. Single player only.
- As A Scalpel (Bronze) - Earn the "Excellent" rating in every performance category on a terror mission.
- Bada Boom (Bronze) - Kill 50 aliens with explosive weapons.
- Beyond the Veil (Bronze) - Find a soldier with the Gift.
- Combat Ready (Bronze) - Build an item.
- Drums in the Deep (Bronze) - Gain access to the lowest level in your base.
- Earth First (Silver) - Beat the game on Classic difficulty.
- Edison (Bronze) - In a single game, complete every Research Project.
- Eye in the Sky (Bronze) - Launch a Satellite.
- Flight of the Valkyries (Bronze) - Win a mission with an all-female squad. Single player only.
- Happy to Oblige (Bronze) - Fulfill a Council request.
- Humanity's Savior (Bronze) - Beat the game on any difficulty.
- Hunter/Killer (Bronze) - In a single game, shoot down one of each alien craft.
- Lone Wolf (Silver) - Clear a UFO crash site with one soldier on Classic or Impossible difficulty.
- Man No More (Bronze) - Build a suit of powered armor.
- Meet New People. Then Kill Them. (Bronze) - Win a multiplayer match.
- No Looking Back (Gold) - Beat the game in Ironman mode on Classic or Impossible difficulty.
- Off My Planet (Silver) - Recover the Hyperwave Beacon.
- On the Shoulders of Giants (Bronze) - Build the Gollop Chamber.
- One Gun at a Time (Bronze) - Staff the Engineering Department with 80 engineers.
- Oppenheimer (Bronze) - Staff the Research Labs with 80 scientists.
- Our Finest Hour (Gold) - Beat the game on Impossible difficulty.
- Pale Horse (Silver) - Kill 500 aliens.
- Poison Control (Bronze) - Cure poison on five soldiers in a single mission. Single player only.
- Prisoner of War (Bronze) - Capture a live alien.
- Ride the Lightning (Bronze) - Build a Firestorm.
- See All, Know All (Bronze) - Build the Hyperwave Relay.
- Shooting Stars (Silver) - Shoot down 40 UFOs.
- Skunkworks (Bronze) - In a single game, complete every Foundry project.
- Tables Turned (Bronze) - Shoot down a UFO.
- The Gatekeeper (Bronze) - Stun an Outsider.
- The Hardest Road (Silver) - Advance one of your soldiers to Colonel rank.
- The Volunteer (Bronze) - Make contact with the Ethereal hive mind.
- Theory... (Bronze) - Build a Laboratory.
- Up and Running (Bronze) - Build a base facility.
- We Happy Few (Bronze) - Complete a mission without losing a soldier.
- Welcoming Committee (Bronze) - Kill 150 aliens.
- Wet Work (Silver) - Complete a Very Difficult abduction mission in five turns or less on Classic or Impossible difficulty.
- What Wonders Await (Bronze) - Complete a Research Project.
- Worth Every Penny (Bronze) - Acquire 1000 credits in one month.
- X Marks the Spot (Bronze) - Uncover the alien base's location.
- Xavier (Silver) - Mind Control an Ethereal. Single player only.
- You Have 5 Seconds to Comply (Bronze) - Build a S.H.I.V
- You Win (Platinum) - Gain all trophies.