The 8-Bit Invaders! Add-on for 8-Bit RTS Series has 22 achievements worth 335 gamerscore.
As GMC or Cranioids, win a multiplayer match against people playing a different 8-bit faction.
Find "Gwen" the penguin in each mission of the Cranioid campaign.
Find "Gwen" the penguin in each mission of the Galactic Marine Corp campaign.
Complete mission 6 of the Cranioids campaign.
Complete the single-player campaign with the Cranioids faction with at least 2 stars in each mission
Complete the single-player campaign with the Cranioids faction.
Complete mission 6 of the Galactic Marine Corp campaign.
Complete all ten co-op campaign missions and earn all possible stars.
Win a one-on-one skirmish game against an insane AI with the Galactic Marine Corp faction.
Win a one-on-one skirmish game against an insane AI with the Cranioids faction.
Complete the single-player campaign with the GMC faction and earn all possible stars.
Complete the single-player campaign with the Cranioids with every mission set to Hard difficulty.
Find "Gwen" the penguin in every mission of the 8-Bit Invaders solo campaigns.
Complete the single-player campaign with the Cranioids faction and earn all possible stars.
Complete the single-player campaign with the GMC faction with at least 2 stars in each mission.
Complete all ten co-op campaign missions with at least one star.
You have completed several hard achievements, congratulations!
Complete the single-player campaign with the GMC faction with every mission set to Hard difficulty.
Complete all ten co-op campaign missions with at least two stars.
As GMC or Cranioids, win a (hard) skirmish or multiplayer game, building at most 1 extra harvester.
In a team with GMC and Cranioids, win a team multiplayer match against human players.
Complete the single-player campaign with the Galactic Marine Corp faction.