Microsoft has revealed its lineup of free games coming to Xbox Live Gold subscribers in December.

All month long, Games with Gold will be offering Xbox One owners The Incredible Adventures of Van Helsing free of charge. Additionally, Square Enix's Thief will be available from December 16 to January 15.

Xbox Wire has also revealed the lineup Xbox 360 games that are being featured in the promotion, with CastleStorm going free from December 1 to December 15. At that point it will be replaced by Sacred 3, which will be free until the end of the month. As an extra holiday bonus, Microsoft is also offering Operation Flashpoint: Dragon Rising as a free download from December 16 to December 31.

Don't forget that November's Games with Gold promotion is currently offering several free games, including Dungeon Siege III and Knight Squad, the latter of which will remain free until December 15.

Which of December's free Games with Gold are you most excited to play? Let us know in the comments.

Has anyone ever played that Thief game? I've always wondered what it's like