I was really struggling to find fallout themed cc for the sims 2 for a few reasons. Firstly, as you probably know everything is very spread out across a lot of websites. But also you can't google 'sims 2, fallout 4' without getting sims 4 content or sim settlements mods for fallout 4. Anyway I knew there was more cc out there than I was finding and I decided while I'm at it I might as well collate it into some recomendations.
Below the cut is some tips for finding this specific theme of cc for the sims 2 as well as links to the cc lists. Currently a work in progress links will be added as I find them. Feel free to recomend your favs.
Check the replies and reblogs for more stuff other people have collected.
Some tips to find other stuff:
Useful keywords when searching for this theme of CC: Grunge, dirty, run-down, Apocalypse, Zombie, fallout, Post-Apocalypse, Survive, Survival, 1950s retro, Scavenging, Trash, Slob, Ruined, Nuclear,
In some cases you may want to look for sims 4 CC and then search for a 4t2 conversion of that set. Sometimes thinking about the game-play or the type of building you want can help you figure out what to search for. For example things made for a rags-to-riches or homeless challenge are likely to have overlap with the dirty run down look you’d want for a post-apocalypse setting.
Run-down/Grungy CC list.
General Apocalypse CC list.
50s CC to match the prewar vibes of Fallout.
Fallout specific CC.
Other Scifi, science and medical CC that may be useful for a vault build.
Cyberpunk CC/Servo defaults and mods.
Zombie mods (links to everythingsims2's mod list).
Castaway CC- a lot of it is run-down or diy looking.
Mods and playstyle suggestions, including some functional objects.