If you're talking the Interplay Fallouts then it's not that they were bad games on release, it's that they're 20 years old and what people expect from a game has changed. Plus sometimes games that old need work from the community to even load now. Unless you've got a PC from the mid 90s running Windows 95. Also when looking at their modding scenes I wouldn't compare them so much to the later Fallout games. They've got far more in common with the likes of Baldur's Gate, Planescape: Torment, and Icewind Dale.