: Adds three new weapons: the XL4-P 'Ghostbuster' Beam Gun , the CDF-ST-005 Plasmathrower , and the MKII-B Minelayer .
: Introduces several unique variants like the Beheaded VaporWave , Spawner Bio-mechanoid , and Quantum Golem . Expanded Game Modes : Serious Sam Classics Revolution-PLAZA
According to official listings on Steam, the requirements are: Recommended Windows XP Windows 7 / 10 Processor 650MHz (AMD Athlon / Pentium III) Dual Core or better Memory 256 MB RAM Graphics OpenGL 1.1 compliant OpenGL 3.0 compliant Storage 2 GB available space 2 GB available space : Adds three new weapons: the XL4-P 'Ghostbuster'
