Here is the full list of all 48 Space Pirates and Zombies achievements. It takes around 100-120 hours to unlock all of the achievements on Windows.
Complete the Game on Expert
Complete the Game on Insane
Never use Respec
Complete the Game
Beat all 10 arena ladders and all 5 tiers on bronze, silver and gold level. Be the champ of 150 events..
Defeat a Tier 3 Bounty Hunter Stronghold in Chapter 4. In short, do the impossible. You have our sympathy.
Clear all zombie infection
Unlock All Ship Hulls
Collect 25,000 Goons
Reach Tech Level 100
Research a Category to Level 10
The Clockwork II
Unlock All Components
Destroy 25 Starbases
Explore 150 Star Systems
Reach Tech Level 50
Explore 50 Star Systems
Beat a Warpgate 10 levels higher than you
Upgrade the Clockwork
Collect 100,000 Rez
Destroy a Tier 3 CIV Base
Destroy a Tier 3 UTA Base
Destroy 2500 Enemy Ships
Collect an Elite Specialist
Train a Specialist to Expert
Complete 100 Missions
Bribe Past 5 Warpgates
Collect 2,500 Goons
Explore 10 Star Systems
Space 250 Goons
Collect a Rare Specialist
Collect 10,000 Rez
Collect a Common Specialist
Destroy 500 Enemy Ships
Bribe Star Relations 5 Times
Retire a Specialist
Feed Santa so much milk and cookies, that an elf falls off his sleigh
Collect a Godlike Specialist
Reach Tech Level 10
Collect an Uncommon Specialist
Mass Retreat 5 Times
Escape the Sol System
Complete 25 Missions
Collect 250 Goons
Destroy 100 Enemy Ships
Complete 5 Missions
Collect 1,000 Rez
Repair the Clockwork