Resonance Cascade

Resonance Cascade trivia questions

1. In Half-Life (1998), what is Gordon Freeman's profession at Black Mesa?
2. In Half-Life (1998), what facility must Gordon escape after the experiment?
3. In Half-Life (1998), which company developed the game?
4. In Half-Life (1998), which company published it for Windows?
5. In Half-Life (1998), which engine does the game run on?
6. In Half-Life (1998), GoldSrc was heavily modified from which engine?
7. In Half-Life (1998), who was hired to help craft the plot?
8. In Half-Life (1998), how is most of the story delivered to the player?
9. In Half-Life (1998), which 2001 expansion added multiplayer on PlayStation 2?
10. By 2008, about how many copies of Half-Life had been sold?