There are two main routes. Which one fits depends on what was copied. This is general information, not legal advice.
Before you report: prepare
- Collect the suspect page URL, app id, screenshots and the dates you first saw it.
- List exactly which parts are yours: art, screenshots, trailer, text, music, code, title or studio name.
- Gather proof that you made it first: your store page, dated source and art files, devlogs.
Route 1: a copyright (DMCA) notice to Valve
If your copyrighted material (art, screenshots, trailer, music, text or code) appears on someone else's Steam page, Valve accepts DMCA notices. Its legal page points to the process (store.steampowered.com/legal), and the notice form is at steamcommunity.com/dmca/create.
Based on that form, expect to provide:
- The URL of the content you say is infringing, and a description of it.
- The URL or a description of your original work, with dates.
- Your full legal name and contact details. The form says these may be passed to the person you're reporting.
- A statement, under penalty of perjury, that you're the copyright owner or authorized to act for them, plus a typed signature.
The form also warns that knowingly false claims can make you liable for damages under Section 512(f) of the DMCA. Only file for material you own.
Route 2: the store page's report link
Steam store pages have a “Report this product” option near the bottom of the page. Use it to flag a page to Valve, and include a short, factual explanation and links to your original.
What about my game's name or studio name?
Names are usually a trademark question rather than copyright. One developer posted that Steam support told them it couldn't help with a copied studio name without a trademark (post on X). If names matter to your business, look into registering a trademark where you sell.
A template you can adapt
Hello Steam team, I'm [NAME] from [STUDIO], developer of "[YOUR GAME]": [YOUR STORE URL] The store page for "[THEIR GAME]" ([THEIR STORE URL]) appears to copy our game: - [e.g. header art is our capsule with the title changed] - [e.g. description text copied word for word] - [e.g. uses our studio name as developer] We first saw that page on [DATE, TIME UTC]. I can provide source files or other proof of authorship on request. Thank you, [NAME], [STUDIO], [EMAIL]
CloneHound's paid plan fills this in automatically for each alert, with links, first-seen timestamps and screenshots, in a proof pack you can download.
After you report
Keep a copy of what you sent. If the page changes or is relisted under another name, report again with the new URL. See also what to do when someone clones your game.