Full list of all 12 WE ARE DOOMED achievements worth 1,000 gamerscore. It takes around 12-15 hours to unlock all of the achievements on Xbox One.
Complete Waves 1-30 with all lives intact
Complete Waves 1-30
Collect every Trinket in the first 10 waves
Reach Zone 10 with 450,000 points (Endless mode)
Reach Zone 8 with all lives intact (Endless mode)
Zap all the baddies in Wave 9 with a SUPERBEAM
Zap 75 Perimeter baddies in a single Endless game
Reach Zone 6 with 80,000 points (Endless mode)
Keep a SUPERBEAM going for 10 seconds (Endless mode)
Complete Wave 30
Complete Wave 20
Complete Wave 10