Delta Particles — is a total conversion for Half-Life, in which you take on the role of Nick Farrell, an engineer at the Delta Base scientific complex. Teleportation research spirals out of control after a catastrophic incident at Black Mesa, opening the way for alien species from the world of Xen. An exciting adventure The Delta Base project, located in the desert, was the main alternative to Black Mesa, but after the resonance, new worlds filled with dangers were revealed. You were tasked with creating a teleportation device, but instead, you found yourself embroiled in a mad conflict with entities from another world. Now it's up to you to find a way to survive in this crazy and unpredictable reality. Each new location will reveal secrets, and new weapon technologies and innovative solutions will help you confront these enemies. Discover dark scientific laboratories and industrial zones, witnessing incredible scientific experiments with devastating consequences. Game features A completely new campaign with a variety of maps and unusual tasks. Weapons, both new and with modifications to improve combat capabilities. New musical style and atmospheric soundtrack from famous bands. Explore alien worlds in the spirit of BlueShift with new models and textures.