| Answer | Crossword Clue |
|---|---|
| DOOM | Early first-person shooter |
| QUAKE | First-person shooter of 1996 |
| DOOM | Popular first-person shooter game |
| DOOM | Pioneering first-person shooter game |
| HALO | Popular first-person shooter video game |
| HALO | Science fiction first-person shooter game |
| HALO | Popular first-person shooter video game since 2001 |
