Complex sentence: This culminated in the 7 June launch of the Kickstarter campaign, which was billed as for expanding the game rather than funding it, which ended on 31 June after raising $909,057.
Split into simpler sentences: This culminated in the 7 June launch of the Kickstarter campaign, which was billed as for expanding the game rather than funding it. The campaign ended on 31 June after raising $909,057.