Complex sentence: The Oculus developer kit was an initial version financed by a Kickstarter campaign, which sought to get the initial Oculus Rift into the hands of developers to begin integration of the device into their games.
Split into simpler sentences: The Oculus developer kit was an initial version financed by a Kickstarter campaign. The campaign sought to get the initial Oculus Rift into the hands of developers to begin integration of the device into their games.