Serious Sam 4 is an upcoming first-person shooter developed by Croatian studio Croteam and published by Devolver Digital. It is part of the Serious Sam series and a prequel to Serious Sam 3: BFE. The game was announced in April 2018, originally as Serious Sam 4: Planet Badass, and is set for release in September 2020 for Microsoft Windows and Stadia, as well as PlayStation 4 and Xbox One in 2021.

Serious Sam 4-Teaser Trailer