Interceptor Entertainment and Apogee Software announce that Rise of the Triad will be released simultaneously this summer on Steam, GOG.com, and Green Man Gaming (Steam). They also offer minimum and recommended system requirements for the shooter remake:

Minimum:
OS:Windows XP 32-bit
Processor:2.4 GHz Dual Core Processor or Better
Memory:2 GB RAM
Graphics:ATI Radeon HD 3870 / NVIDIA 8800 GT
DirectX®:9.0
Hard Drive:5 GB HD space
Sound:DirectX Compatible

Recommended:
OS:Windows 7 64-bit
Processor:2.4 GHz Quad Core Processor or Better
Memory:4 GB RAM
Graphics:AMD Radeon HD 6950 / NVIDIA GeForce GTX 560
DirectX®:9.0
Hard Drive:5 GB HD space
Sound:DirectX Compatible