Libraries and museums that have info on planets and clues (audio logs, hidden words, and riddles) on how to find weapons and armor. This would weed out the weak and lazy because they wouldn't have have the willpower to decode clues in order to unlock awesome weapons and armor. You could solve mysteries like Indiana Jones.
Please share ideas below.
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We'll sooner or later some douche would come along and just tell them where to get it like every other game ever made so no that wouldn't work but it would be cool