Fallout 3, new Vegas, fallout 4 stole my soul.
I love the lore and long for the day I can ever spend an hour talking with someone who is fallout competent.
Fallout 1 and 2 are out there for torrent but it's a complete different level of strategy. The concept of survival is so much more real and lingering. It takes resources to move and stay alive and literally anything can come out of nowhere and tear shit up.
I gave up but regret it because of the deep lore that is there, about the G.e.c.k., the factions, and the deviousness of VaultTec who may have orchestrated the nuclear event themselves.