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