Nintendo's sales juggernauts sit atop the video gaming world for another month.

The NPD Group has released its sales number for the month of May (5/2/2010 - 5/29/2010), and Nintendo leads the charts once again.

The Nintendo DS led hardware sales for the month, moving 383,700 units.  The Wii wasn't far behind at 334,800 units sold.  For comparision, the PlayStation 3 (154,500) and Xbox 360 (194,600) combined sold 349,100 units for the period.  In other words, Nintendo is still handily outselling every competitor in the United States in both the console and portable arenas.

NPD US Video Game System Sales - May 2010

383.7K - Nintendo DS   
334.8K - Wii
194.6K - Xbox 360
154.5K - PlayStation 3 
059.4K - PSP           

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On the software side, Rockstar's burgeoning mega-franchise Red Dead Redemption took the top two spots, but Nintendo had some familiar representatives in the top 10.  Super Mario Galaxy 2 sold 563,900 units to come in at number three, while Wii Fit, New Super Mario Bros. Wii, and Pokemon SoulSilver occupied the sixth, seventh, and ninth spots, respectively.

Top 10 VG Console/Portable SKU's May 2010

Title    Platform    Publisher    Release Date   Units
1. RED DEAD REDEMPTION 360    TAKE 2 INTERACTIVE    May-10     945.9K
2. RED DEAD REDEMPTION    PS3    TAKE 2 INTERACTIVE    May-10     567.1K
3. SUPER MARIO GALAXY 2    WII    NINTENDO OF AMERICA    May-10     563.9K
4. UFC 2010: UNDISPUTED    360    THQ     May-10     221.1K
5. UFC 2010: UNDISPUTED    PS3    THQ    May-10     192.3K
6. WII FIT PLUS W/BALANCE BOARD*    WII    NINTENDO OF AMERICA    Oct-09
7. NEW SUPER MARIO BROS. WII    WII    NINTENDO OF AMERICA    Nov-09
8. ALAN WAKE*    360    MICROSOFT    May-10
9. POKEMON SOULSILVER VERSION   NDS    NINTENDO OF AMERICA    Mar-10
10. SKATE 3    360   ELECTRONIC ARTS    May-10

(*includes CE, GOTY editions, bundles,etc. but not those bundled with hardware)

Overall game industry (hardware, software, and accessories) sales for the month of May were down 5% year-on-year to $823 million, while year-to-date industry sales were down 10% to $5.56 billion.

Hardware sales were particularly hard hit, falling 20% for both the month of May and year-to-date.  NPD analyst Anita Frazier explained that while console sales were flat, price cuts resulted in less money being generated off of those sales when compared to last year.