Complex sentence: Development had been under way on "Perception" for around six months before the team launched a Kickstarter crowdfunding campaign in May 2015, it concluded successfully a month later with $168,041 raised towards the game's further development.
Split into simpler sentences: Development had been under way on "Perception" for around six months before the team launched a Kickstarter crowdfunding campaign in May 2015. The campaign concluded successfully a month later with $168,041 raised towards the game's further development.