Fallout 4 is an open-world action role-playing game developed by Bethesda Game Studios and published by Bethesda Softworks. Set in a post-apocalyptic Boston and the surrounding Commonwealth, players emerge from Vault 111 to explore, complete quests, build settlements, and shape the fate of factions. The game features first- and third-person combat, deep crafting systems, and branching storylines. Widely praised for its vast world and freedom of choice, Fallout 4 remains a benchmark in immersive RPGs.