You probably just got lucky the first 20 hours. Fallout 3 is shit on modern computers.
Fallout 3 has a lot of problems, ones Bethesda never ironed out of the PC version.
Diamond was one of the first games I bought for my DS when I first got one (which was a Lite). I beat the Elite Four then wiped the save to try new builds and eventually got burnt out from Pokemon, that title in particular. Mainly because the games made before X and Y became massive grindfests if you caught a bunch of Pokemon and wanted to level them up (X and Y made it a hell of a lot easier by giving you Exp. Share early on, and Diamond iirc made it so it affects all partied Pokemon). I still like Pokemon X and Touhoumon Another World, X because shit's a hell of a lot easier to manage than in previous games, leaving me to worry only about how my team is built and how they fight, and Another World because it's Pokemon with Touhou dolls, and Gensokyo's the region it takes place in which is cool shit to me.I tested out the NDS emulator on my iPhone to play Pokemon Diamond, since I completed Red, Gold, Ruby & Firered. Before that, I actually got all 8 badges in my previous Diamond run on my DS, but I quit because I can't beat the Elite Four (not to mention my squad is pretty weak). Not to mention at that time I haven't completed a single Pokemon game until I beat Pokemon Red this year.
For the emulator on my iPhone, it's alright, the only problem is that sometimes the music can slow down at certain points, but other than that, so far for me, it works alright.
Here's my squad so far, and I haven't got any badges yet. Funnily enough, so far my squad is all female.
