Full list of all 39 The Medium achievements worth 1,000 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox Series X|S.
You found all of Thomas' notes in a single playthrough.
You found all of Frank's postcards in a single playthrough.
You finished the game.
You completed the broken mirror.
You made it through the pump station.
You found all Echoes in a single playthrough.
You uncovered the mystery of the burned down house
You found the Red House.
You sent the Hound away.
You experienced your second vision of Thomas.
You reconstructed all Memory Shards in a single playthrough.
You found all of Henry's Echoes in a single playthrough.
You defeated the creature in the flooded ruins.
You sent the Childeater away.
You experienced your first vision of Thomas.
You found all pages from Richard's diary in a single playthrough.
You spent 10 minutes outside your body.
You escaped the creature without alerting it.
You acquired the bolt cutters.
You used a mirror to cross over.
You survived a monstrous encounter.
You used Insight for at least 15 minutes.
You inspected 100 objects in a single playthrough.
You found a note from a troubled man.
You burned through the moths using Spirit Shield.
You acquired the razor.
You found a page from a mentor's diary.
You reconstructed a Memory Shard.
You have run 2 kilometers.
You met Sadness.
You found an Echo of a mysterious caller.
You found an Echo.
You've reached the hotel.
You inspected 50 objects in a single playthrough.
You used Spirit Blast to create electricity.
You found a postcard from the groundskeeper.
You sent Jack's spirit away.
You inspected 25 objects in a single playthrough.
You fed the cat in Jack's apartment.