headcrab · half-life · gonarch · horror · parasite · monster · infection · grotesque · survival · sci-fi
The screen flickers to life, revealing the ominous title **Headcrab Infection**. A stark menu interface materializes against a dark backdrop. The user is presented with a critical choice: select a faction. On one side, the desperate **SURVIVORS**—Survivor, Scientist, or Security. On the other, the relentless **XEN** forces—Headcrab, Vortigaunt, or Bullsquid. The cursor hovers, awaiting you's command.