Xbox 360 titles won't be included in Games with Gold from October onwards.
The Games with Gold service is available to subscribers of Xbox Live Gold and Xbox Game Pass Ultimate - but the approach is set to change in the coming months.
In an email to Games with Gold subscribers, Microsoft said: "From 1st October 2022, the monthly games provided to Xbox Game Pass Ultimate and Xbox Live Gold members via Games with Gold will no longer include Xbox 360 titles,.
"We have reached the limit of our ability to bring Xbox 360 games to the catalogue; however, Games with Gold will continue to include exciting Xbox One titles and exclusive savings each month.
"This will not impact any Xbox 360 games that you downloaded before October 2022. Any Xbox 360 titles that you redeem via Games with Gold before that time are yours to keep on your Xbox account, regardless of whether you continue your subscription. Thank you for being a loyal member."
The tech giant - which launched the original Xbox console in 2001 - made as many as 76 Xbox 360 games backwards compatible with newer consoles in 2022.