A downloadable tool for Windows

Buy Now$3.00 USD or more

Quick links: Documentation · Supported games · Discord server

GMTogether is a tool that introduces online multiplayer support into a large variety of games made with GameMaker: Studio and GameMaker Studio 2.

It is low-bandwidth, low-latency, unbiased, and is all-around the closest you can get to automagically adding online multiplayer to a game. In a way, the ultimate successor to my online multiplayer mods.


If you are willing to spare $3 or more, you get a small set of goodies:

  • 2 (TWO)* Steam keys for the Steam build of GMT.
    This version is by all means identical to the regular build (which is added as free/demo on this same page), but it can use Steam P2P services to save you from having to port-forward - instead you host a lobby and invite a friend to it.
    If a game uses Steam API, GMT will seamlessly use the game's API integration. If a game does not use Steam API, GMT will use its own App ID.

... actually that's it for now. The eventual intent is to have a small bundle of various 2P mini-games and prototypes that I worked on over years, but, you know - one thing at a time.

If you have previously donated >=$3 via the blog tip jar, send me a message; the page can still be used for smaller donations (as itch.io seemingly lacks a fitting mechanism for what I'm doing here).

Reminder: The non-Steam version is freely available for download under "demo" section on this same page.

Rated 5.0 out of 5 stars
(1 total ratings)
Made withGameMaker
Average sessionAbout a half-hour
InputsKeyboard, Mouse, Xbox controller
MultiplayerServer-based networked multiplayer


Buy Now$3.00 USD or more

In order to download this tool you must purchase it at or above the minimum price of $3 USD. Your purchase comes with a Steam key. You will get access to the following files:

GMT-Goodies.zip 255 bytes

Download demo

GMTogether.zip 685 kB
Version 2020-12-05