There are currently two known launch parameters (aka launch options) that ΔV currently recognizes.
--enable-mods
This option enables the modloader, which allows the game to run mods whilst disabling achievements and the leaderboard while it is enabled. Check the modding page to read more
--debug-console
This option enables a select few tools intended to be used for testing the game's development. It adds several debug features, and moves the default functionality of the ` key to the F11 key.
--screensaver
This removes all menu screens, and shows purely the main menu background animations for a neat screensaver. Pressing any key causes the game to exit
--accumulate-input
This is a workaround for high-polling mice causing lag spikes in the game. Page links to the troubleshooting guide for more info.