Seasonal events

Core Keeper has 7 seasonal events. The game turns each one on by the date, read in UTC.

Lunar New Year
31 January to 13 February10 itemsValentine
14 February to 27 February22 itemsAnniversary
8 March to 21 March5 itemsCherry blossom
22 March to 31 March4 itemsEaster
5 April to 16 April25 itemsHalloween
25 October to 7 November33 itemsChristmas
14 December to 4 January51 items

Seasonal Merchant

The Seasonal Merchant moves into a room that has a free bed and a Seasonal Calendar. It sells 25 items; each event page lists the ones from that event.

Also sold, outside the event lists:

Happy Birthday To You