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 functionality of the ` key to the F11 key.