Other solution instead of forced shutdown on my linux laptop when software freezes

i usualy play Minecraft on my laptop(4 Go, Intel i5 3320M and Intel HD graphics 4000) using a external usb ssd (on Sparkylinux for have the maximum of ram) and sometime, when i load a world, 5 seconds before, there are very low fps and then it freeze, but all the computer, and i can't do anything. Sometime i wait and Minecraft close itself, sometime the laptop stay in this state for a long time, so i force shutdown (by pressing 5 seconds the on/off button) for restart the system and replay normaly. I made this post for know if there is a other way to shutdown without the risk of corrupting the files or others consequences. Thank you