Oculus started the official Winter sale for the Oculus VR and the Samsung Gear devices. More than 100 games available with up to 70% OFF (discount percentage depends on the game) in the Oculus store until January 3, 2017 (USA time) in all regions.
The exactly list can be found on the Winter Sale page in here: https://www.oculus.com/experiences/section/1490203944340785/