Fans of sports, the cold, and mostly going downward are in for a treat (as long as they own a PC); Ubisoft's enjoyable, open-world extreme winter sports extravaganza Steep is currently free to download and keep via Uplay.
Steep originally released on Xbox One, PlayStation 4, and PC in 2016, to what Wikipedia tells me was a "mixed to average" critical response. Clearly nobody asked Eurogamer's Christian Donlan or myself, because we both really quite enjoyed it.
Admittedly, my own positive feelings toward Steep have mostly been directed at the walls and ceiling until now, but Donlan awarded its sometimes uneven, but frequently exhilarating, blend of extreme sports and vast, freeing expanses, a Eurogamer Recommended back in the day.