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