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Build status License Discord version WebsiteAndDownloads

GlosSI Logo GlosSI - Global (systemwide) Steam Input

GlosSI formerly knows as GloSC (Global Steam Controller), is a tool that allows one to use Steam-Input controller rebinding at a system-level alongside a system wide (borderless window) Steam overlay

The primary use case of GlosSI is to use SteamInput (required for SteamController / SteamDeck-buttons) with incompatible Games such as Windows-Store titles or Emulators.

GlosSI can, but isn't required to, launch any of your favorite games or applications and directly add them to Steam, be it Win32 or Windows Store (UWP)!
It is the tool to enjoy any game that has trouble with Steam and/or add extra functionality to your Steam-Input needs

How does it work? / What does it do?

GlosSI provides a target application that can be added as a "Non-Steam Game" to Steam.
When launched, it redirects all configured controller inputs to a virtual system-level XBox360 controller.

Additionally, it provides the Steam Overlay in an (always on top) transparent window.

As a result, this brings full Steam-Input functionality to the desktop and any other application Steam-Input might not have worked before.

Games do not need to be launched using GlosSI.
However, to ease managing multiple GlosSI shortcuts, there is also a GlosSI-Config application included.
It allows one to create individual GlosSITarget configurations which can launch games for you, and easily add or remove them from Steam.

What GlosSI is not

  • a replacement for Steams controller configuration tool.
  • a Steam remote play / steam game streaming solution. (That being said, it can work, but is not guaranteed to.)
    The experience when doing this is most likeley miserable; Thus there is no support for this use case.
  • Old versions (GloSC, Global [S]team[C]ontroller) were never designed to be used with anything other than said controller, GlosSI can be used with any controller.

Help and Support

If you're looking for a tutorial on how to use GlosSI check out the usage section on the GlosSI website or check the document

Get in touch on Discord!
Lots of kind and helpful people can be found there, happy to have a quick chat or answer support-requests


Like my stuff? Hit me up on twitter or consider donating to my PayPal

GloSC got mentioned from Valve in the Steam client beta change log on the 9. of January 2017

GloSC/GlosSI is not affiliated with Valve, Steam, or any of their partners.

GlosSI is built using Qt 6.X and a fork of SFML for drawing the overlay

The system wide Xbox-Controller works via ViGEm Device Hiding via HidHide

For Building instructions refer to


Copyright 2017-2023 Peter Repukat - FlatspotSoftware

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
See the License for the specific language governing permissions and
limitations under the License.