I would really recommend the Doom games. Doom 1 and 2 are from the early 90s and are really pixelated. The most violent thing is that you can blow monsters apart. Doom 64 was released for Nintendo 64 in 1997, but can be gotten on other consoles. Doom 3 is meant to be a really scary horror game. I haven’t played it, mainly because it’s ‘too grown-up’ but I doubt it will bother me, I’m pretty mature for my age. Doom 2016 and Doom Eternal are apparently two of the most violent games ever, allowing you to brutally dismember monsters in incredibly graphic ways. One monster, called the prowler, has two incredibly graphic finishers. One involves ripping its chest open and the other involves pulling its spine out. I haven’t played then either.

However, I would recommend the old ones, but you can try the new ones.

-Apex