Prospekt is a standalone Half-Life 2 expansion developed solo by Richard Seabrook. While not an official expansion, the mod has been giving Valve's backing and been launched as a paid product on Steam.
In Half-Life Prospekt players taking on the role of the Marines, watching the events of Half-Life 2 unfold from the other side of the war.
PC System Analysis For Half-Life: Prospekt Requirements
You need a Pentium 4 3.0GHz or Sempron 3600+ processor coupled with a GeForce 8600 GT to run Half-Life: Prospekt system requirements at recommended. You can expect to get around 60FPS at 1080p screen res on high graphics settings with this hardware. 1 GB will also be needed to achieve the Half-Life: Prospekt rec specs and get 60FPS. System memory for min is 512 MB. We suggest a 12 year old PC to play smoothly.