Insomniac Games was working on Resistance 4

The crazy sandbox Sunset Overdrive 2 was also in development at some stage

Recently leaked documents from Insomniac Games revealed a reference to the fantasy shooter Resistance 4. The project was called R4, and was developed between Ratchet & Clank: QForce (2012) and Sunset Overdrive (2014). It is possible that the game could have been released on the PlayStation 4 console.

Between the releases of Ratchet & Clank (2016) and Marvel's Spider-Man (2018) the studio was also working on Sunset Overdrive 2.

According to documents, Insomniac had a multiplayer Marvel's Spider-Man: The Great Web in the works , which was also cancelled.

(news cover source: SIE)