The Ultimate Edition includes the base game and all official expansions:
Fallout: New Vegas - Ultimate Edition (PC DVD) : Amazon.co.uk
is widely considered one of the greatest RPGs ever made, offering a masterful blend of player choice, deep writing, and world-building. While "Free Download" offers should be approached with caution due to security risks, the game is frequently available at a massive discount or through legitimate subscription services. Core Gameplay & Story Fallout New Vegas Free Download Ultimate Edition
You play as a Courier left for dead in the Mojave Wasteland, eventually becoming the pivot point for a war between the NCR, Caesar's Legion, and the mysterious Mr. House.
You can solve problems through diplomacy, stealth, or brute force. The "Speech" skill is notably one of the most powerful and rewarding paths in the game. The Ultimate Edition includes the base game and
Courier’s Stash (starting gear) and Gun Runners’ Arsenal (high-tier unique weapons and ammo types). Community Sentiment & Stability
Be extremely careful with sites offering "Free Downloads" of the Ultimate Edition. These are often pirated versions that can contain malware or ransomeware . Legitimate copies are often priced very low (often under $10) during sales on platforms like Steam, GOG, or the Epic Games Store. Courier’s Stash (starting gear) and Gun Runners’ Arsenal
“Still, this is well worth playing, though I would recommend downloading the official and unofficial [patches].” Amazon UK