Getting an external drive to free up some space is not a good idea. If you’re running out of storage space, you won’t be able to install additional packs. If you’ve been a Sims 4 fan for years and you’re thinking of purchasing all the expansion packs, make sure you’ve got enough free space on your machine. On average, Sims 4 game packs take up 600 MB, while stuff packs take up 170 MB. Some expansion packs such as Get Famous can take up to 2.6 GB of storage space. On average, Sims 4 expansion packs take up around 2 GB each. The Sims 4 and the 12 expansion packs released so far take up around 45 GB of storage space.