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