Half-Life 2: 20th Anniversary Documentary
- Он: 2024
- Улс: United States of America
- Төрөл: Documentary
- Студио: Valve, Secret Tape
- Түлхүүр үг: games, game developer, social & cultural documentary
- Захирал: Danny O'Dwyer
- Цутгамал: Gabe Newell, Viktor Antonov, Dave Riller
