GameDevTool builds free calculators for game creators. Platforms like Roblox take fees, split revenue and pay out under rules that change over time, and working out what you will actually earn usually means digging through help pages and doing arithmetic by hand. We turn those rules into simple tools that give a clear answer in seconds.
Who it is for
The tools are for developers, UGC creators and anyone selling items or passes on a game platform who wants to price things sensibly and plan a payout. You do not need an account, and you never need to share a login or password.
How the tools work
Every calculator runs in your browser, so the numbers you enter stay on your device. Each tool page explains the formula it uses, gives a worked example and answers common questions. Where a rate comes from a platform's official documentation, such as the Roblox Creator Hub, we say so and note when it was last checked.
Accuracy and corrections
Platforms update their fees, and we update the tools when they do, but there can be a delay. Results are estimates to help you plan, not financial, tax or legal advice. If you spot a rate that looks out of date or a result that looks wrong, please tell us and we will look into it. Read more in our terms and disclaimer.
Independence
GameDevTool is an independent project. It is not affiliated with, endorsed by or sponsored by Roblox Corporation. Roblox is a trademark of Roblox Corporation, and any platform names on this site are used only to describe what the tools calculate.
What is next
We are starting with Roblox and plan to add calculators for other game platforms. Suggestions are welcome on the contact page.