Vortigaunts

Vortigaunts trivia questions

1. In Half-Life (1998), where does Gordon Freeman work when he meets Vortigaunts?
2. In Half-Life (1998), what kind of scientist is Gordon Freeman?
3. In Half-Life (1998), what causes aliens to overrun Black Mesa?
4. Half-Life (1998) was developed by which company?
5. Half-Life (1998) was first released for which platform?
6. Half-Life (1998) runs on GoldSrc, a modified version of whose engine?
7. Which studio published Half-Life (1998)?
8. Which novelist helped craft the plot of Half-Life (1998)?
9. In Half-Life (1998), how is most of the story conveyed?
10. By 2008, about how many copies had Half-Life sold?