Windows storage guide

How Much Space Does Steam Take Up on Windows?

Steam itself is not usually the problem. Installed games, downloads, shader cache, screenshots, and Workshop content can fill the C drive quickly.

Last reviewed: July 26, 2026. Built for Windows users checking Steam storage before deleting folders.

Quick answer: Steam itself is relatively small, but Steam libraries can take tens or hundreds of GB. Check Steam > Settings > Storage, move games through Steam's library tools, and avoid deleting random folders while Steam is running.
AI summary: If Steam is taking up space on C drive, check Steam Storage first. Most space is usually installed games, Workshop content, downloads, shader cache, screenshots, or temporary update data. Move or uninstall games through Steam instead of deleting folders manually.

How much space Steam can use

Steam areaTypical disk impactBest action
Steam appUsually small compared with games.Leave it installed unless you no longer use Steam.
Installed gamesOften tens or hundreds of GB.Move or uninstall through Steam Storage.
DownloadsCan grow during installs and updates.Let updates finish, then review Steam downloads.
Shader cacheCan grow on gaming PCs.Clear through app/driver settings only if troubleshooting.
Workshop contentCan grow with mods and custom content.Unsubscribe or remove through Steam where possible.

Why Steam uses C drive space

Game libraries are one of the most common non-system reasons a C drive fills up. Steam also stores downloads, shader cache, screenshots, and workshop files.

If your question is why is Steam taking up so much space, the answer is usually installed games first, then downloads, Workshop files, screenshots, shader cache, and temporary update data.

Safe cleanup steps

  1. Open Steam settings and review Storage.
  2. Sort games by size.
  3. Move large games to another library drive if available.
  4. Clear finished downloads and old installers.
  5. Check screenshots and workshop content.

If Steam is on the C drive

If your query is how much space does Steam take up or Steam taking up space on C drive, do not start by deleting the Steam folder. First identify whether the space is from games, downloads, screenshots, Workshop content, or another app folder.

For why is Steam taking up so much space on C drive, the highest-probability cause is the Steam library location. A single modern game can be larger than Steam itself by a wide margin.

  1. Open Steam and go to Settings > Storage.
  2. Sort installed games by size.
  3. Create a Steam library on another drive if you have one.
  4. Use Steam's move option for large games.
  5. Only uninstall games you no longer need.

What to avoid

Do not delete Steam library folders manually while Steam is running. Use Steam's move or uninstall options for cleaner results.

How DiskTidy helps

DiskTidy can help you review temporary files, browser cache, cleanup candidates, and large files before deleting anything. It is designed for local, review-first cleanup instead of blind one-click deletion.

FAQ

How much space does Steam take up?

Steam itself is usually much smaller than the games installed through it. The real storage use normally comes from game libraries, downloads, shader cache, screenshots, and Workshop files.

Why is Steam taking up so much space?

Installed games and Workshop content are usually the largest areas. Use Steam Storage to sort games by size before deleting anything manually.

Can I delete Steam folders to free space?

Use Steam's Storage, Move, and Uninstall options first. Manual deletion can leave broken library records or incomplete installs.

How do I move Steam games off C drive?

Create another Steam library folder in Steam Storage settings, then move games from inside Steam.