THE game. Has its reputation for a reason: it did things with choice in terms of gameplay that most games to this day have a hard time catching up to, let alone surpassing. Awesome cyberpunk plot and atmosphere, fantastic gameplay (with the few issues easily being fixed with mods) and a sheer level of choice that's hard to find.
My favorite game of all time. The only "make your own decision game" where I actually felt like I could make my own decisions. Countless ways to tackled each task in the game. Music and atmosphere meshes perfectly