PC (Microsoft Windows)May 2, 2012
Released ✓ 
RELEASES · DEALS · SUBSCRIPTIONS
Serious Sam: The Retro Encounter
Serious Sam: The Retro Encounter is a fan made, freeware DooM mod that aims to recreate Serious Sam's gameplay and provide a balanced multiplayer and an unique Serious Sam style campaign.
ActionShooter
Game modes
MultiplayerSingle player
Player perspectives
First person