Want to make a pretty easy 40G and also snag the Phantom Achievement in The Medium? This guide can help!
The phantom achievement unlocks after the player completes a specific segment in the Niwa resort, without alerting the The Maw.
There are 3-4 stealth sections which the player has to complete without alerting the creature. All of these have to be completed in full stealth mode in the same play-through for the achievement to pop. Pretty easy 40G!