Home and Entertainment includes the Microsoft Xbox video game console system, PC games, the Home Products Division (HPD), and TV platform products for the interactive television industry. The success of video game consoles is determined by console functionality, the portfolio of video game content for the console, and the market share of the console. Revenue and unit volumes have grown quickly since we entered the market in 2002 and we have established ourselves as one of the market leaders. We believe our competitive position and revenue is bolstered by our increasing software game attach rates, which provides higher margins to offset the declining prices on consoles sold. Xbox consoles have negative gross margins.
Home and Entertainment revenue increased in fiscal year 2005 primarily due to significant new product launches, which resulted in a $416 million or 23% increase in Xbox revenue. In the second quarter of fiscal year 2005, we introduced Halo 2, which generated over $300 million in revenue in the fiscal year. Revenue from consumer hardware and software, PC games, and TV platforms declined $50 million or 5% compared to fiscal year 2004 due to lower PC games software sales. In fiscal year 2004, Xbox revenue increased $144 million or 9% with $269 million related to higher Xbox software volumes and $117 million due to higher Xbox console volumes, partially offset by a $242 million decline related to price reductions of Xbox consoles and software. Overall, Xbox console volumes sales increased 11% in fiscal year 2004 compared to fiscal year 2003. Revenue from consumer hardware and software, PC games and TV platforms declined $16 million or 1% compared to fiscal year 2003 due to lower PC games software and PC gaming devices sales, partially offset by the new release of Mac Office.
Home and Entertainment operating loss in fiscal year 2005 decreased primarily due to an increase in high margin Xbox software sales, lower Xbox console unit costs, the lower-of-cost-or-market inventory adjustment recorded in fiscal year 2004, and a decrease in stock-based compensation expense. The decrease was partially offset by an increase in costs associated with Xbox 360 console development and launch efforts associated with it. The increase in operating loss in fiscal year 2004 was primarily due to $141 million of stock-based compensation expense from the employee stock option transfer program in the second quarter of fiscal year 2004, increased sales of negative margin consoles, and costs associated with Xbox 360 console development efforts, partially offset by increased Xbox and Mac Office software sales. The operating loss increase from fiscal year 2003 also included a lower-of-cost-or-market adjustment of approximately $90 million related to Xbox console inventory.
We expect operating expenses to continue to increase as we near the launch of Xbox 360. As a result of launch-related activities, we expect our operating loss to increase in fiscal year 2006. In fiscal year 2006, we expect Xbox console unit volumes and revenue to increase from fiscal year 2005 due to launch of the Xbox 360. In fiscal year 2006 we expect PC games revenue to increase from fiscal year 2005 driven by more new game titles.