Earlier today, Microsoft announced the January 2020 Games With Gold lineup via the Xbox Wire. Beginning at various times in January, Xbox Live Gold and Xbox Game Pass Ultimate subscribers will be able to download and play the following games as part of their subscription. As always, Xbox 360 games are also playable on Xbox One via backwards compatibility.
Styx: Shards of Darkness (Xbox One)
Styx: Shards of Darkness is a fantasy stealth game developed by Cyanide. Players use the goblin Styx's array of traps and abilities to infiltrate the city of Dark Elves and pull off the robbery of a lifetime. TechRaptor's Alex Santa Maria reviewed Styx: Shards of Darkness back in 2017, praising the stealth gameplay but criticizing its restrictive level design. It is available for download on January 1st–31st.
Batman: The Telltale Series (Xbox One)
Batman: The Telltale Series includes all five episodes of Telltale Games' take on the caped crusader. Players split time between controlling Bruce Wayne and the Batman in a narrative adventure that will determine the fate of Gotham City and its dark knight. There's probably a clown or something in there too. Batman: The Telltale Series can be downloaded from January 16th through February 15th.
Tekken 6 (Xbox 360 and Xbox One)
Subscribers will also be able to download the sixth installment in Bandai Namco's long-running fighting game series. Tekken 6 features 30 playable characters and one of them is a bear, so I don't know what more you need to hear. Tekken 6 is available on January 1st–15th.
Lego Star Wars II: The Original Trilogy (Xbox 360 and Xbox One)
Lego Star Wars II: The Original Trilogy takes players on Lego-fied adventures through all three original Star Wars films. This sounds like the perfect game to play while avoiding The Rise of Skywalker spoilers. It's available for download on January 16th–31st.