← XCOM: Enemy Unknown

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• Regenerate ThisKill an elite enemy Medic with explosive damage in single player20.3%Uncommon
• Solid ProspectComplete Deluge20.5%Uncommon
• All Hands on DeckGet at least 4 kills with XCOM Base Security personnel21.5%Uncommon
• Angel of DeathKill an alien while flying. Single player only.22.9%Uncommon
• They Shall Not PassEliminate all alien waves23.2%Uncommon
• G’dayKill an elite enemy Sniper with one of your own snipers in single player24%Uncommon
• ShieldbusterEliminate an enemy's shield and kill it on the same turn in single player26.2%Uncommon
• Zom-B-GoneEradicate the infestation26.5%Uncommon
• Elite DefenseBeat a new special mission without losing any assets27.8%Uncommon
• Flight of the ValkyriesWin a mission with an all-female squad. Single player only.28%Uncommon
• The Bigger They Are—28.8%Uncommon
• Who Needs Limbs?Augment a soldier in single player29.5%Uncommon
• A Little Bit AlienModify a soldier in single player29.6%Uncommon
• OppenheimerStaff the Research Labs with 80 scientists.30.3%Uncommon
• Bait the Hook—31.3%Uncommon
• Humanity's SaviorBeat the game on any difficulty.31.7%Uncommon
• One Gun at a TimeStaff the Engineering Department with 80 engineers.33.3%Uncommon
• The Volunteer—35%Uncommon
• New Friend—35.9%Uncommon
• Taking A Load OffStop a squad member from suffocating in single player37.3%Uncommon
• On the Shoulders of Giants—37.7%Uncommon

Data from Steam — Steam Web API Terms of Use. Last updated 20 Aug 2026.