MonitorSwitcher

A small Risk of Rain 2 mod that lets you choose which monitor the game runs on, right from the in-game settings.

What it does

• Adds a Display Monitor option to Options → Video.
• Pick a monitor and the game window moves there immediately — no restart required.
• Your choice is saved and applied automatically the next time you launch the game.

How to use

1. Open Options → Video and find Display Monitor at the bottom of the list.
2. Select the monitor you want (shown as Display 1 (2560 x 1440), Display 2 (3840 x 2160), etc.).
3. The game moves to that monitor right away. A 10-second confirmation dialog lets you keep the change or revert it, just like the vanilla resolution setting.
4. The choice sticks for future launches.

Performance

Nothing runs in the background. The setting is applied once when the game starts and once when you change it; there is no continuous overhead or measurable impact on frame rate because this mod is not polling, or doing anything per-frame to keep the game on the selected monitor, or anything else like that.

It is a set-and-forget, event-driven mod that runs on start-up and when you choose to change the display.

Notes

• Windows only because I don't have Linux to test with, and my quick googling showed that Thunderstore is Windows-based anyways. If there is Linux interest maybe I can look at that later.
• (obviously) Multi-monitor setup required. With a single monitor the setting just shows your one display and selecting it does not do anything. But really, if you have 1 monitor I don't know why you would download this mod lol.
• The Resolution dropdown updates to list the resolutions of the monitor you're currently on, so you can switch to a 4K monitor and select 4K without restarting.
• If the saved monitor isn't connected anymore, the game falls back to your primary display.
• Advanced/Devs: You can also set the display from the developer console with display_monitor DISPLAY1 (values are DISPLAY1, DISPLAY2, ... -- NOT the name of the monitor (the weird like AWQXXYZ32 naming monitor companies like to use)).