For only the third time in the past year, retail game sales saw a year-over-year increase in April. And what a rise it was. Wario World

The NPD Group reports that software sales were up 26 percent last month to $503 million. Overall (including hardware and peripheral totals), the industry had brick and mortar sales of $930.7 million – a 20 percent increase.

On the hardware side, the Xbox 360 and PS3 were the clear winners, while the Wii, DS and 3DS all disappointed. Microsoft says 360 sales were up 60 percent year over year, while Sony is claiming a 13 percent jump.

Overall, software sales were up for Sony as well, increasing 40 percent, according to the company, but there were some hints about the impact the ongoing PlayStation Network outage had.

"Portal 2" sold better on the Xbox 360 than the PS3, despite a big push by Valve Software focusing on the multiplayer advantages of the PS3 version. And "Socom 4" was MIA in the monthly top 10. The multiplayer-heavy franchise was released just one day before Sony took its PlayStation Network offline due to a hacker attack.

The complete list of the month's Top 10 sellers can be found after the break:

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