Winter Sale Steam 2024 Trading Card Game. The second is the arrival of steam's winter sale. A new trading card badge has been added with this sale which you can only acquire for a limited time:

The winter sale 2023 is a special card set that was made available during the 2023 winter sale. The steam winter sale starts at 10 am pt/1pm et and will run from december 21, 2023 to january 4, 2024.