Sorted by Christmas

You're a gonk in Santa's workshop, and the sacks are not going to fill themselves.

A few small rooms teach you the ropes: red, green and blue paper into the matching sacks, a padlocked door and the golden key that opens it. Then the last door swings open on the hall, and the mountain: 100,000 presents, every one of them real, every one waiting for its sack.

Sort it all

Carry presents by the armful, throw them across the hall, drag a sack to where you're digging. Every present sorted fills the big meter, and every time it fills, a golden key drops. A key opens any padlock you like: another vacuum, a roost of drones, robots that sweep the floor for you.

The workshop's games

Read the nice list from the pulpit and wrap the good children's boxes. Scan brown parcels with the X-ray to see the toy inside. Ride the practice sleigh round the dome and drop presents down the chimneys of the log cabins below, while a friend winds its key. Bounce from trampoline to trampoline to knock down the presents floating on balloons. Each game pays out in toys: black holes, dynamite, rockets you ride into the mountain.

Together is better and worse

Host a game, send your friends a Steam invite or a code, and get in each other's way. A friend's throw can bowl you over and spill everything you carry. Your vacuum hoovers up the present your friend was reaching for. Glide down from the rafters.

Your gonk

A wardrobe of knitted hats, tops, glasses and beards. Emotes, and voice chat that carries across the room.

• First-person co-op for up to eight gonks, or solo
• A mountain of 100,000 presents, every one sorted by hand, by vacuum or by dynamite
• Games that pay toys, and golden keys that unlock vacuums, drones and floor robots
• The nice list, the X-ray, the practice sleigh's chimneys and the trampoline court
• Steam invites or a join code, voice chat

No timer. Come back over a few evenings; the mountain will wait.

Streamers and video makers: you're welcome to stream Sorted by Christmas and to monetise your videos of it.