: It does not download the DLC files for you. You must source the actual game data files separately and place them in your installation directory. How to Use the Unlocker (Windows & Steam)
Do not use G2A (gray market). Use authorized resellers. You can buy The Sims 3: Starter Pack for $5, which includes Generations and Pets.
Unlockers often come with scripts or pre-packaged folders containing the actual Store items converted into .package format. Because the game’s engine is highly modular—designed to read user-generated custom content—it treats these unlocked Store files exactly the same as community-made mods. The unlocker places these files into the Mods folder, bypassing the official launcher’s content verification entirely.