is it possible that is can just be the game?
The game can trigger the problem but it will not be the actual cause.
for example a game can run on a gpu, the gpu heats up, when the GPU heats up it draws more power from the motherboard slot, if it hits the max power from the motherboard slot then the motherboard protection circuit kicks in and resets the CPU. (this case you most likely will not get a minidump)
often after the reset the motherboard does not delay the CPU from just restarting. If the CPU restarts before the power is stable then the CPU can get corruptions of data as data transfers between the levels of the CPU cache. The CPU memory controller detects the corruption and calls a panic bugcheck to stop the system. You might get a minidump in this case or you might not (depending on your storage system and how much cache it has and if lazy writes are turned on) bugcheck 0x124 are a special case of memory dumps.
having the memory dump will show if you have overclocking drivers installed, or if you have two overclock drivers installed, it also shows the system up timer. Often a motherboard can reset the CPU and start booting windows before people realize the system rebooted before the bugcheck that happens on the reboot.
generally if you have a overheating related power issue the system up timer will be longer more than a minute.
if the system timer indicates less that say 15 seconds then the motherboard circuit most likely reset the cpu.
(often you see system up time of 2 to 5 seconds in this case.)
There are now many more things that can cause bugcheck 0x124 most often you have to look at parameter 1 to figure out the cause.
0 means the cpu called the bugcheck but the bugcheck can be called by other devices now, anything connected to the PCI/e bus like the GPU, or the newer USB subsystems.