I was wondering why my doom game got taken down please tell me why

It was likely too violent, but we can't and shouldn't really know. If you click on the game page, there should be an orange banner ontop telling you what the issue was. You could also ask the ST using Contact Us

Usually, topics revolving around guns, killing, and violence are not allowed. The game itself has faced controversy over being violent:

Doom is a 1993 first-person shooter (FPS) game developed by id Software for MS-DOS. Players assume the role of a space marine, popularly known as Doomguy, fighting his way through hordes of invading demons from Hell. Its graphic violence and hellish imagery made it one of the top video game controversies in history.

Source: https://addpmp.slamjam.com/posts/doom-controversy

Maybe you can rebrand it and soften down on the violence?