Install

Geometry Dash

1. Launch Geometry Dash on your device.
2. Open the Geode menu by clicking the Geode button at the bottom of the main menu.
3. Use the search bar to find "Geometry Dash: Surge".
4. Click the Install button next to the mod to install it.
5. After installation, restart Geometry Dash to activate the mod.

Website

1. Visit the mod's official page.
2. Click the Download button located on the right-hand side of the page.
3. Move the downloaded file omgrod.geometry-dash-surge.geode to your Geometry Dash mods folder, typically found at your/gd/path/geode/mods.
4. Launch Geometry Dash and enjoy the mod!

or just download the mod here.