The Xbox One games included with Games with Gold 2021 are NeuroVoider and Aground.
The first is available between January 1 and January 31, while the second can be downloaded between January 16 and February 15.
But arguably Games with Gold’s group selection of latest free games can be found in backward compatible titles.
The Xbox 360 Space Invaders Infinity Gene title is available between January 16 and January 31, while between January 1 and 15, Game Pass Ultimate and Xbox Live subscribers can get Radiant Silvergun.
This is a legendary vertical shooter from Treasure, the masters of the genre who created classic titles like Gunstar Heroes, Sin and Punishment, Ikaruga, Guardian Heroes, and the cult classic N64 Mischief Makers.
Radiant Silvergun was first released in arcades before being moved to the Sega Saturn for an exclusive Japan release.
The Saturn version of Radiant Silvergun is one of the most prized items for retro gamers, with a physical version of the game selling for hundreds of pounds on eBay.
Fortunately, for anyone who doesn’t want to shell out so much for an original copy, Radiant Silvergun was ported to Xbox 360 in 2011.
It’s available to play on Series X, Series S, and Xbox One thanks to extensive backward-compatible support from Microsoft.
If you want to play another classic Treasure game, you can also download the Xbox 360 version of Guardian Heroes from the Xbox Store right now.
You will have to pay for this download, with this revamped version of the Saturn classic priced at £ 3.39.
But this is a fraction of the cost of getting a copy of the original Saturn game, which will probably cost you around £ 100 on eBay.