Serious Sam: The Second Encounter is a first-person shooter video game developed by Croteam and originally published by Gathering of Developers. First released on Microsoft Windows on 5 February 2002. It is the second episode following Serious Sam: The First Encounter released a year prior. Both episodes were combined into one game and ported to the Xbox. High-definition remakes of both episodes were released in 2009 and 2010 on Microsoft Windows, and were later ported to the Xbox 360, Nintendo Switch, PlayStation 4, and Xbox One video game consoles. The series follows the adventures of protagonist Sam "Serious" Stone and his fight against the forces of the notorious extraterrestrial overlord Mental who seeks to destroy humanity. A fan-made level-pack, Dark Island, was included in Serious Sam: Gold. The games are on separate CDs (in the UK version) and are identical to their individual releases, except that the Sam character model for The First Encounter was modified to match the one used in The Second Encounter. After the release of the remakes, both titles had "Classic" added to the name to prevent confusion. Gameplay Identical to Serious Sam: The First Encounter'''s gameplay, The Second Encounter consists almost entirely of the player attempting to defeat dozens of enemies at a time in wide-open arena-like areas and thus is relatively simple. Virtually no changes have been made to the gameplay since The First Encounter, but the sequel includes different environments unlike the Egyptian aesthetic that was featured in every level in The First Encounter. Some fights also feature gravity manipulated rooms including a closed-in room where a bridge collapses from underneath the player to reveal a rubberized floor where the player and several enemies chaotically bounce around. The game features 7 new enemies and 4 new weapons, including a chainsaw, a sniper rifle, a flamethrower, and the Serious Bomb that is featured in Serious Sam's logo. The bomb was designed as a last-ditch effort to clear away a wave of enemies if combat becomes too overwhelming. All weapons and enemies from The First Encounter make a return to this game. Unlike the first game where it featured one boss in the final level, The Second Encounter features three bosses. The game also introduces 4 power-ups that quadruple the player's damage output, as well as giving them a brief burst of running speed, invulnerability, and invisibility. Like its predecessor, The Second Encounter features cooperative