From Bethesda Softworks:
Build the perfect vault. Create a brighter future. underground. Select from a variety of modern-day rooms to turn an excavation beneath 2, 000 feet of bedrock into the very picture of Vault Life. Oversee a thriving community. Get to know your Dwellers and lead them to happiness. Find their ideal jobs and watch them flourish. Provide them with outfits, weapons, and training to improve their abilities. Customize. Turn worthless junk into useful items with Crafting. Customize the look of any dweller in the Barbershop. PROSPER. A well-run Vault requires a variety of Dwellers with a mix of skills. Build a Radio Room to attract new Dwellers. Or, take an active role in their personal lives; play matchmaker and watch the sparks fly. Explore the wasteland. Send Dwellers above ground to explore the blasted surface left behind and seek adventure, handy survival loot, or unspeakable death. Find new armor and weapons, gain experience, and earn Caps. But don't let them die. Protect your vault. From time to time, idyllic Vault life may be disrupted by the dangers of post-nuclear life. Prepare your Dwellers to protect against threats from the outside. and within. Vault-Tec has provided the tools, but the rest is up to you.
Thanks to the continuing hard work of our engineers, Vault-Tec is excited to bring you another awesome update. The Horsemen of the Post-Apocalypse are tearing up the Wasteland. Can things get worse?????? (Hint: Yes) Find out in Part 2. Com'ere now, boyo. Make St. Patrick's Day celebrations last a wee bit longer with a new Irish-themed questline. The Vault simulation has been tweaked and adjusted for an even smoother Overseer experience. Thanks, Vault-Tec.