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