Rujukan Half-Life_2

  1. ↑ "Half-Life 2 for Windows: Release Summary". GameSpot. CNET Networks, Inc. Dicapai 2013-03-16. 
  2. ↑ "Half-Life 2 for Xbox: Release Summary". GameSpot. CNET Networks, Inc. Dicapai 2013-03-16. 
  3. ↑ "The Orange Box for Xbox 360: Release Summary". GameSpot. CNET Networks, Inc. Dicapai 2013-03-16. 
  4. ↑ "The Orange Box for PlayStation 3: Release Summary". GameSpot. CNET Networks, Inc. Dicapai 2013-03-16. 
  5. ↑ "Half-Life 2, Half-Life 2: Episode One and Half-Life 2: Episode Two Updates Released". Steam. Valve Corporation. 2010-05-26. Dicapai 2010-05-26. 
  6. ↑ "Half-Life 2 Beta released". Steam. Valve Corporation. 2013-05-09. Dicapai 2013-05-09. 
  7. ↑ Paul, Jason (12 Mei 2014). "The Greatest PC Games of All-Time – Half-Life 2 and Portal – Now Available on SHIELD". NVIDIA Corporation. TegraZone. Dicapai Oktober 11, 2014. 
  8. ↑ "Half-Life 2 - Android Apps on Google Play". NVIDIA Corporation. Google. 12 Mei 2014. Dicapai 12 Mei 2014. 
  9. ↑ Keighley, Geoff. "Behind the Games: The Final Hours of Half-Life 2 (Part III)". GameSpot. CNET Networks, Inc. Dicapai 2006-07-09. 
  10. ↑ Bramwell, Tom (2007-05-21). "Valve Talks Episode Two Interview". Eurogamer. Dicapai 2008-09-22. 
  11. ↑ Parker, Sam (2003-10-02). "Half Life 2 Source Leaked". GameSpot. Dicapai 2008-09-22. 
  12. ↑ Van Autrijve, Rainier (2004-10-21). "Doug Lombardi of Valve Software". GameSpy. IGN Entertainment, Inc. Dicapai 2009-11-06. 
  13. ↑ Butts, Steve (2003-05-08). "Half-Life 2 Preview". IGN. IGN Entertainment. Dicapai 2008-09-22. 
  14. ↑ "Half-Life 2 PC Reviews". GameRankings. Dicapai 19 Mei 2006. 
  15. ↑ "Half-Life 2 PC Reviews". Metacritic. Dicapai 20 Mei 2006. 
  16. ↑ "Valve Awards". Valve Corporation. Dicapai 2008-09-22. 
  17. ↑ Stuart, Keith (2009-12-17). "The Gamesblog 50 games of the Noughties: number one". The Guardian. London. Dicapai 2010-03-31. 
  18. ↑ "Game of the Decade: Championship Round". CrispyGamer. 2009-12-11. Dicapai 2010-04-02. 
  19. ↑ "Best Games of 2004". Reviewsontherun. Dicapai 2010-04-05. "Video Game Awards". December 2014. 
  20. ↑ "Best Games Overall". IGN. Dicapai 2010-04-05. 
  21. ↑ "Analysis: Valve's Lifetime Retail Sales For Half-Life, Counter-Strike Franchises". Gamasutra. December 3, 2008. Dicapai December 3, 2008. 
  22. ↑ Remo, Chris (2008-05-30). "Valve: PC Has 'Perception Problem,' Piracy Reflects 'Unserved Customers'". Gamasutra. Dicapai 2008-12-03. 
  23. ↑ Chiang, Oliver (2011-02-09). "The Master of Online Mayhem". Forbes. Dicapai 2011-05-10. 

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