Here is the full list of all 42 Space Pirates And Zombies 2 achievements.
Investigate the zombie signal
Don't worry, it was just a bandit.
You joined 1 battle
You destroyed 1 Fail Gate
Fixed your ship while in a combat level.
You destroyed 10 motherships
Blow up some defenseless strike craft.
Learn how to command strike craft
Systems checks complete!
The bane of Carl's existence.
You destroyed 100 motherships
Clear the galaxy of infection
Complete the story
Meet someone from your past and blow up their stuff
You killed a bandit Chief.
You beat 1 champion level Arena
You beat 5 champion level Arenas
You beat 15 champion level Arenas
You joined 5 battles
You joined 15 Battles
You destroyed 3 Fail Gates
You destroyed 10 Fail Gates
You destroyed a starbase
You Destroyed 3 starbases
You destroyed 10 starbases
You defeated 1 zombie captain
You defeated 5 zombie captains
You defeated 15 zombie captains
You destroyed a tier 3 bandit hive.
You executed a captain stuck in their escape pod.
You did a little tinkering with a podded captain's mind.
Converted an unneeded part into scrap in the inventory screen.
You won a bounty duel vs. another captain.
You have found all the lore.
You have explored all the territories.
You have custom ordered a part from the catalog.
You cured a zombie captain using a ton of Rez.
You paid off your own bounty.
You stole a faction member from another faction.
You defeated a faction leader in battle.
You started an alliance with another faction.
You demanded the surrender of another captain for fun and profit.