Without a GPU in general the system won't post/boot. With an integrated GPU (iGPU), most likely not. CPUs that have iGPUs tend to be significantly weaker compared to CPUs without one, and the iGPU itself isn't strong enough to play AAA titles well.
It will run, but I doubt it would be playable in any sort of fashion. Maybe at 720p on lowest settings, depending on your definition of "playable". It'd be better to buy any GPU than to have an iGPU in nearly all cases.