: This was one of the last original IPs developed by Raven Software before they were moved almost exclusively to supporting the Call of Duty franchise. The Technical Tags
: This indicates that the software has had its geographical encoding removed or was never restricted. In the era of the Xbox 360 and PS3, games were often locked to specific regions (NTSC-U for North America, PAL for Europe). A "Region Free" version can be played on hardware from any country. Singularity [Region Free][ISO]
: ISO files are easier for community developers to "rip" and modify, leading to fan-made patches that can improve textures or unlock frame rates. : This was one of the last original