SISR ✂️

Steam Input System Redirector

SISR (pronounced "scissor") redirects Steam Input configurations to the system level (localhost or network).

It can be used to circumvent issues with games and applications that do not support Steam Input or otherwise pose challenges, like (but not limited to):

• Games with aggressive anti-cheat systems
• Emulators
• Windows Store games/apps
• Games with broken Steam Input support

SISR can also be used to "tunnel"/forward Steam Input configurations over the network to other machines, including Keyboard/Mouse.
This makes it possible to use devices like a Steam Deck as a dedicated controller without the need to stream the entire game.

The emulated controllers (and Keyboard/Mouse) are indistinguishable from real hardware and show up at system level.
SISR achieves this by utilizing VIIPER (requires USBIP).
Unlike its predecessor GlosSI, it does not use the unmaintained ViGEm driver.

⚠️ Highly experimental work in progress. Everything is subject to change and may or may not work.
Expect bugs, crashes, and missing features.

✨🛣️ Features / Roadmap

• ✅ Steam Input redirection to system level (localhost or network)
  • Indistinguishable from real hardware
• ✅ Xbox 360 controller emulation
• ✅ Keyboard/Mouse emulation (only in network scenarios)
  • Allows use of devices like the Steam Deck as dedicated controller
• ✅ Flexible configuration (CLI, config files, environment variables)
• ✅ Multi-platform support (Windows, Linux)
• ✅ Multiple operation modes
  • Standalone background service
  • Steam overlay window mode
• 🚧 PS4 controller emulation
• 🚧 Xbox One controller emulation
• 🚧 Generic controller emulation
• 🚧 Gyro Passthrough
• 🚧 Bundling multiple devices into a single controller
• 🚧 Automatic HidHide integration

Documentation / FAQ / Help

Read the documentation!

📝 Contributing

PRs welcome! See GitHub Issues for open tasks.

📄 License

SISR - Steam Input System Redirector

Copyright (C) 2025 Peter Repukat

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.