https://www.gamespot.com/articles/last-chance-for-free-xbox-one-games-with-gold-for-/1100-6462140/

October is nearly upon us. Once the calendar page turns, Xbox Live Gold subscribers will no longer be able to download September's Games With Gold. That would be a shame, because missing out on free Xbox One and Xbox 360 games is never a good idea. The titles going away on Monday, October 1, are Prison Architect and Sega Vintage Collection: Monster World.

Prison Architect is a sim game for Xbox One that puts you in charge of the building and running of a maximum security facility. Don't let the game's cutesy art style fool you: this is a deep management game with lots of overlapping systems. It also gets surprisingly dark, as prisoners can do things like murder each other and launch full-scale riots if you don't keep them happy. Good luck with that.