S.Peelman on 10 December 2021
Second hint for #19 and first hint for #18.
#19: Out of sight out of mind says us.
Hint 2: Is what the barkeep said about the abundance of garbage this planet creates. He knows the real reason why you asked though, so time to show your weapon.
#18: This game features a building named "Kong Tower", which is fitting because it kind of looks like the real 'Kong' tower.
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