Here is the full list of all 34 Galaxy of Pen & Paper +1 achievements.
Talk to 50 npcs.
Complete all quest types.
Unlock all optional classes.
Play with 4 roleplayers at once.
Land on 25 different planets.
Unlock the Savage class.
Unlock the Negotiator class.
Unlock the Medtech class.
Unlock the Heavy class.
Gather 100 minerals.
Engage a pirate ship and win the battle.
Choose all different choices for a single event.
Complete 50 side quests.
Finish the game having the Achiever roleplayer in your party.
Create a character with a 9 in any attribute
Reach 100% reputation at the highest Rank.
Unlock all reputation perks.
Defeat a boss with a single character alive.
Gather 99 of any consumable items in your inventory.
Swap a skill after a game over.
Grab some food and place it on your table.
Finish off a space pirate with your special weapon at full charge.
Unlock all metashop items.
Grab all weapon and armor upgrades for a character.
Beat the game.
Used all minerals available in the universe as a currency.
Deal a critical damage of 500 or more using your Opportunistic Strike.
Reach 70% critical chance during a combat.
Use Charged Attack after upgrading it with an Ancient Artifact.
Use Piercing Attack after upgrading it with an Ancient Artifact.
Use Knockdown after upgrading it with an Ancient Artifact.
Use Long Shot after upgrading it with an Ancient Artifact.
Find all 4 Ancient Artifacts.
Reach level 25.