Fallout 3 won't launch off steam

Sorry if this has been posted before but I've searched all around the internet and can't seem to get my game running.

So i bought Fallout 3 on steam like 4 years ago or so. I played for like an hour and it was really good so I wanted to game some more. But the next time I booted up the game I got into launcher and pressed the launch button the game just crashed. No crash screen, no windows error, nothing. I've tried to google to no avail. My game just won't start.

I run the game through steam and I'm on Windows 7. (Used to have Windowd 10 for like a month when it came out but downgraded as it was shit, if whst makes any difference idk.)

Thanks for any advice on how I can get this thing fixed. Haven't tried to run the game for like two years as I've had just given up on it. But recently I've watched some youtubers playing it for the memes and I just feel like missing out one something big. So please Todd just fix your game or something. Thanks