The Steam Winter Sale has started, running now through Jan. 3 at 1 p.m. PT. Valve has several games discounted on the platform, as always, as well as a special campaign running alongside the sales period. This year's seasonal meta name is called Extremely Cozy Cottage, a setting where players can check in to receive badges, profile backgrounds, emoticons and special "knick-knacks."
Knick-knacks are available alongside the usual Steam Winter Sale trading cards , according to Valve, but have different collection requirements. To unlock them, players must interact with the Cottage's landing page to open the doors they hide behind. Different doors open on a daily basis, each with unique gifts. Today's batch, for example, includes the Lip Balm item, which can be consumed to upgrade the Knick-Knack Collector badge.
These items will expire on Feb. 2 at noon PT, so check in regularly if you're serious about Steam badges. Valve promises more information will come on Dec. 24 at 1
Meanwhile, the Steam Winter Sale includes discounts on games like XCOM 2 Yakuza 0 PlayerUnknown's Battlegrounds and Hellblade: Senua's  Sacrifice for as much as 75 percent off. Check out the rest of the list on Steam.