YoYo Games Ltd.

Richard Oct 2 GameMaker: Studio / General

In order to get a Steam key from YoYoGames.com, you need to have purchased a license key from us and received your 32 digit license key(s).  After 14 days, you will be able to recover your Steam keys from the support page.

If you are unsure if your keys have been activated you can use the support page and recover your keys.  If you do not receive your keys then please contact the Helpdesk.

Richard Sep 18 Announcements

Due to the recent web issues, the Helpdesk has received a high number of tickets.  Please be aware that it is taking some time to get through them but we are working as fast as we can to do so.

To help us out: If your issue has been resolved please solve your ticket, it will help us get through the rest of the issues faster.

Mark Alexander Sep 15 Announcements

So you’ve purchased the Humble Weekly Bundle: Play and Create with GameMaker bundle but you don’t know what to do now? No problem, we’ve got you covered!

Redeeming Your Voucher Code(s)

In order to get started you will need to have created a YoYo Account.  This will allow you to store your licenses and log-in to GameMaker: Studio.  This will also act as your user login to the Marketplace and the Player.

Once you have created and set up your YoYo Account you will see a blue box on the main Licenses tab:


Please press the “click here”. You will then be asked to enter your Humble Bundle code:


Once your code has been added it will look like this:


Doing this will automatically add your Professional license onto your account.

IMPORTANT! If you have purchased the Android Module then you will need to repeat this process and enter your Android Humble Bundle code. Once the code has been entered you will then select your Professional license and this will attach it. (Note: If you already own a different Professional license, then you can attach it to that instead, but this license has to be added to your YoYo Account first. Please understand that you can attach a Module to one Professional license only.)

Finally, your account should now look as follows (the android module will be listed if you have attached that):


That should be you good to get started with GameMaker: Studio.


Setting Up GameMaker: Studio Professional

To download GameMaker: Studio, click here.

If you want some help installing GameMaker: Studio click here.

In order to setup your modules we have these useful guides:

And, if you received this as part of your Humble purchase, please also see:

Importing Source Code GMZs

Importing the gmz files that you get could not be simpler (the GMZ format is what GameMaker: Studio uses to store projects in one easy-to-transfer file).

When you first start GameMaker: Studio, navigate to the import tab.  Make sure you have the filter set to “gmz” and then click the “…” button above this in order to find the file.

When you complete the import it will create a project folder that will contain all of your resources for the project.  If you want to save this file in a certain location (Project Directory) or rename it (Project Name) then you can change these also.


If you want to enable Source Control for this project then you can do so on this screen also. We would recommend having a read of this 6 part Knowledge Base article here for how to work with source control.


How to Get Tech Support

First, remember to search the documentation yourself. You can open up the manual inside GameMaker: Studio by pressing "F1".  Alternatively, you can use the online versionYou can also read up on more technical stuff from the Knowledge Base - you can also search this from inside GameMaker: Studio using the little search box near the top-right corner.

If your issue is with the setup/install or licensing of GameMaker: Studio, then contact Customer Support

For Development support or issues with the source code packages we recommend creating an account at the GMC forums, where you can then direct your questions to the community in any one of the following Humble game-specific forums (other non-Humble boards are also available):

You may even get an answer from the developer themselves!


More Information

Steam Key

Getting GameMaker: Studio Professional (and the Android Module) from this Bundle allows you to get a Steam Key.  After 14 days from activating your license in the system please go to our recovery page and enter your email address.  You should receive a list of your license keys.  Please note you have to have created your YoYo Account before doing this.

Adding More Modules

If you purchase some more Modules you can add your licenses on to your GameMaker: Studio Professional license if you wish.  Just simply log in to your YoYo Account and go to the licenses tab.  Enter your Module license key and then attach it to the Professional license.  This will link your Module and the next time you start GameMaker: Studio all your Modules will have downloaded.

Marketplace and Player

Want to buy or sell some game development assets? Get on the Marketplace.  Read more about it here.

Want other people to play your games, or fancy playing theirs? Get on the Player.  Read more about it here.

Daniel December 22, 2014 Announcements

Please note that unfortunately from 01.01.15 we will be obliged to charge VAT under the HMRC regulations below:


This will require us to make some changes to the information we require to enable us to establish the VAT rate applicable to the sale.

Under the new regulations from the HMRC we must keep applicable records for 10 years, however please be assured that information will not be given to any third party, unless legally forced.

If you feel unhappy about the new MOSS regulations (Mini One Stop Shop), then please see the link below where you can actively oppose this:



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