Why does my mac keep crashing

Ok im a gamer and i play games alot, since about january 2013 my computer has been crashing while running dungeon defenders, borderlands 2, and many others. and half of my games dont even work anymore like super meat boy, cubemen 2 and a few others. I have partitioned my hard drive with windows 7 and like everygame on there crashes with a blue screen. When my mac crashes it gives me this crash log. Please Help im desperate 😢

Interval Since Last Panic Report: 308957 sec

Panics Since Last Report: 1

Anonymous UUID: 3D75490E-1255-422D-35E0-DA38D07A60AB

Fri Jun 7 15:10:24 2013

panic(cpu 1 caller 0xffffff8024eb7e95): Kernel trap at 0xffffff802519f82d, type 14=page fault, registers:

CR0: 0x0000000080010033, CR2: 0x0000000000000009, CR3: 0x0000000034513073, CR4: 0x00000000000606e0

RAX: 0x0000000000000000, RBX: 0x0000000000000001, RCX: 0x0000000000000000, RDX: 0x000000000000001c

RSP: 0xffffff81f5143e10, RBP: 0xffffff81f5143ed0, RSI: 0xffffff81f5143e88, RDI: 0xffffff804d41c260

R8: 0x0000000000000052, R9: 0x00000000000003ff, R10: 0xffffffffffffffff, R11: 0x00000000ffffffff

R12: 0xffffff804d41c260, R13: 0xffffff80524d3570, R14: 0xffffff80524d35b8, R15: 0xffffff804d41c1a0

RFL: 0x0000000000010246, RIP: 0xffffff802519f82d, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x0000000000000009, Error code: 0x0000000000000000, Fault CPU: 0x1

Backtrace (CPU 1), Frame : Return Address

0xffffff81f5143ab0 : 0xffffff8024e1d626

0xffffff81f5143b20 : 0xffffff8024eb7e95

0xffffff81f5143cf0 : 0xffffff8024ecd4dd

0xffffff81f5143d10 : 0xffffff802519f82d

0xffffff81f5143ed0 : 0xffffff802519f345

0xffffff80524d3570 : 0xb12c78b8

Unaligned frame

Backtrace terminated-invalid frame pointer 0x33

BSD process name corresponding to current thread: Skype

Mac OS version:

12D78

Kernel version:

Darwin Kernel Version 12.3.0: Sun Jan 6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64

Kernel UUID: 3EB7D8A7-C2D3-32EC-80F4-AB37D61492C6

Kernel slide: 0x0000000024c00000

Kernel text base: 0xffffff8024e00000

System model name: MacBookPro8,1 (Mac-94245B3640C91C81)

System uptime in nanoseconds: 13752483933855

last loaded kext at 3548892278541: com.apple.filesystems.smbfs 1.8 (addr 0xffffff7fa6ae8000, size 229376)

last unloaded kext at 389123732241: com.apple.driver.AppleUSBUHCI 5.2.5 (addr 0xffffff7fa5829000, size 65536)

loaded kexts:

org.virtualbox.kext.VBoxNetAdp 4.1.16

org.virtualbox.kext.VBoxNetFlt 4.1.16

org.virtualbox.kext.VBoxUSB 4.1.16

org.virtualbox.kext.VBoxDrv 4.1.16

com.logmein.hamachi 1.0

net.telestream.driver.TelestreamAudio 1.0.5

com.Cycling74.driver.Soundflower 1.5.2

com.apple.filesystems.smbfs 1.8

com.apple.filesystems.ntfs 3.10

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.iokit.IOBluetoothSerialManager 4.1.3f3

com.apple.driver.AGPM 100.12.87

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleHDA 2.3.7fc4

com.apple.driver.AppleUpstreamUserClient 3.5.10

com.apple.driver.SMCMotionSensor 3.0.3d1

com.apple.driver.AppleMikeyDriver 2.3.7fc4

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.AudioAUUC 1.60

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.ApplePolicyControl 3.3.0

com.apple.driver.AppleBacklight 170.2.5

com.apple.driver.AppleMCCSControl 1.1.11

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.1.3f3

com.apple.driver.AppleSMCLMU 2.0.3d0

com.apple.driver.AppleIntelHD3000Graphics 8.1.0

com.apple.driver.AppleIntelSNBGraphicsFB 8.1.0

com.apple.driver.AppleLPC 1.6.0

com.apple.driver.AppleUSBTCButtons 237.1

com.apple.driver.AppleUSBTCKeyboard 237.1

com.apple.driver.AppleIRController 320.15

com.apple.iokit.SCSITaskUserClient 3.5.5

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 34

com.apple.driver.XsanFilter 404

com.apple.driver.AppleUSBHub 5.5.5

com.apple.iokit.IOAHCIBlockStorage 2.3.1

com.apple.driver.AppleSDXC 1.4.0

com.apple.driver.AppleFWOHCI 4.9.6

com.apple.iokit.AppleBCM5701Ethernet 3.6.0b1

com.apple.driver.AirPort.Brcm4331 614.20.16

com.apple.driver.AppleUSBEHCI 5.5.0

com.apple.driver.AppleAHCIPort 2.5.1

com.apple.driver.AppleEFINVRAM 1.7

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 1.7

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.7

com.apple.driver.AppleAPIC 1.6

com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0

com.apple.nke.applicationfirewall 4.0.39

com.apple.security.quarantine 2

com.apple.driver.AppleIntelCPUPowerManagement 196.0.0

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 2.3.7fc4

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.driver.AppleHDAController 2.3.7fc4

com.apple.iokit.IOHDAFamily 2.3.7fc4

com.apple.driver.AppleSMBusPCI 1.0.11d0

com.apple.iokit.IOAudioFamily 1.8.9fc11

com.apple.kext.OSvKernDSPLib 1.6

com.apple.iokit.IOSurface 86.0.4

com.apple.iokit.IOBluetoothFamily 4.1.3f3

com.apple.driver.AppleSMBusController 1.0.11d0

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.1.3f3

com.apple.driver.AppleSMC 3.1.4d2

com.apple.driver.IOPlatformPluginFamily 5.3.0d51

com.apple.driver.AppleGraphicsControl 3.3.0

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.iokit.IONDRVSupport 2.3.7

com.apple.iokit.IOGraphicsFamily 2.3.7

com.apple.driver.AppleThunderboltDPInAdapter 1.8.9

com.apple.driver.AppleThunderboltDPAdapterFamily 1.8.9

com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.6

com.apple.driver.AppleUSBMultitouch 237.3

com.apple.iokit.IOUSBHIDDriver 5.2.5

com.apple.driver.AppleUSBMergeNub 5.5.5

com.apple.driver.AppleUSBComposite 5.2.5

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.5

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.driver.AppleThunderboltNHI 1.6.3

com.apple.iokit.IOThunderboltFamily 2.2.6

com.apple.iokit.IOAHCISerialATAPI 2.5.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.5

com.apple.iokit.IOUSBUserClient 5.5.5

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOEthernetAVBController 1.0.2b1

com.apple.iokit.IO80211Family 522.4

com.apple.iokit.IONetworkingFamily 3.0

com.apple.iokit.IOAHCIFamily 2.3.1

com.apple.iokit.IOUSBFamily 5.5.5

com.apple.driver.AppleEFIRuntime 1.7

com.apple.iokit.IOHIDFamily 1.8.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 220.2

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 345

com.apple.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.21

com.apple.driver.AppleACPIPlatform 1.7

com.apple.iokit.IOPCIFamily 2.7.3

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

Model: MacBookPro8,1, BootROM MBP81.0047.B27, 2 processors, Intel Core i7, 2.7 GHz, 16 GB, SMC 1.68f99

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB

Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1333 MHz, 0x029E, 0x434D5341384758334D314131333333433920

Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1333 MHz, 0x029E, 0x434D5341384758334D314131333333433920

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.16)

Bluetooth: Version 4.1.3f3 11349, 2 service, 18 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: TOSHIBA MK5065GSXF, 500.11 GB

Serial ATA Device: OPTIARC DVD RW AD-5970H

USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2

USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc52b, 0xfd120000 / 4

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3

USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfa100000 / 3

USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 7

USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0252, 0xfa120000 / 4

USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 2