7
votes
2answers
415 views

Why didn't I get the Army of Four achievement in XCOM: Enemy Unknown? Did I miss something?

Today I finished my 3-day long, Classic+Ironman run and aimed to get these 4 achievements: "Earth First", "Ain't No Cavalry Comin'", "No Looking Back" and "An Army Of Four". All my soldiers lived ...
4
votes
1answer
2k views

How do I get the “Edison” achievement in X-Com?

I believe I've researched everything. This is what I have researched so far, and I'm at the very end of the game: Xeno-biology Arc Thrower Outsider Shard New Fighter Craft Hyperwave ...
13
votes
2answers
11k views

What are the hidden achievements in XCOM: Enemy Unknown?

Steam lists the game as having 60 achievements, but only ~38 actually show up in the achievement list to start with. What "secret" achievements are there, and what are the requirements to unlock ...