Valve Reveals Lifetime Retail Sales of Half-Life, Counter-Strike Series
Sales from Valve's digital distribution client are not factored in, with the figures only accounting for worldwide retail sales. With Half-Life 2, Valve began simultaneously releasing all of its PC games at retail and via Steam. The numbers were originally printed in the November issue of Game Informer, then republished by Gamasutra.
Furthermore, it was not specified if the figures of multiplatform games--Half-Life, Half-Life 2, The Orange Box--included both PC and console sales, or just PC.
- Half-Life (Valve) / 1998 - 9.3 Million
- Half-Life: Opposing Force (PC, Gearbox) / 1999 - 1.1 Million
- Half-Life: Blue Shift (PC, Gearbox) / 2001 - 800,000
- Counter-Strike (PC, Valve) / 2000 - 4.2 Million
- Counter-Strike: Condition Zero (PC, Valve) / 2004 - 2.9 Million
- Counter Strike: Source (PC, Valve) / 2006 - 2.1 Million
- Counter-Strike (Xbox, Valve) / 2003 - 1.5 Million
- Half-Life 2 (Valve) / 2004 - 6.5 Million
- Half-Life 2: Episode One (PC, Valve) / 2006 - 1.4 Million
- The Orange Box (Valve) / 2007 - 3 Million
(Half-Life 2 HL2: Episode One, HL2: Episode Two, Portal, Team Fortress 2)
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I think the seemingly lower numbers for the later on sales (Source engine+) is because of Steam. Without the Steam sales details it's kind of hard to discern what sales have really been like in more recent times.
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