Serious Sam: Tormental

Serious Sam: Tormental is a a 3D rogue-lite top-down shooter set in Serious Sam universe.

Blast your way through the tormented mind of Notorious Mental, a demigod of destruction, as he imagines worlds and monsters that stand on your path towards his inner ego. 

This is an early prototype, showcased at Reboot Develop in April 2018, coming from Croteam Incubator and created by Gungrounds developers/fans of Geometry Wars, Nuclear Throne, Binding of Isaac, Serious Sam and Enter the Gungeon.