if not i'm buying the gog copy or pirating it

Been wanting to play this game again. When it launches. it says it needs a game key and it won't let me play without it. How do I fix this?

Dont buy dead space 1 or 2. They are broken ♥♥♥♥♥♥ ports. what a damn shame *Edit cause “it works for me” isnt advice* i dont give a rats ass if it works for you. it doesn't work on my PC and thats an issue. its only the deadspace games have this issue too since many ever so helpful people told me the game works for them, i did a fresh install of the game and recorded gaemplay. lets see if the ever so helpful phrase "it works for me" fixed my issue: https://youtu.be/icFOQOs8mxo *spoiler ale...

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cant beat dead space 2 becoz of the laser room just cant get past it