You can buy the game here: https://store.steampowered.com/app/41050/Serious_Sam_Classic_The_First_Encounter/ https://www.gog.com/game/serious_sam_the_first_encounter Serious Sam: The First Encounter is a first-person shooter video game developed by Croteam and originally published by Gathering of Developers. First released on Microsoft Windows on 21 March 2001. It had been in development since 1996 and had videos showing its early gameplay in 2000. The First Encounter was originally developed by Croteam as a demonstrator for their engine and the reason why some countries saw its initial release priced at less than half the price of other games in the genre. This game was followed by a sequel, Serious Sam: The Second Encounter released 11 months later. Serious Sam: The First Encounter's gameplay 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. The game's story establishes the reasons and methods for how the player travels from chapter to chapter through the game's menu system called NETRISCA. Enemies spawn frequently and attack in large waves from across the game map, and the player is intended to dodge their projectiles and charges by jumping and strafing rather than by taking cover. Health and armor are non-regenerative on all difficulty levels except for the easiest and instead are replenished with the health and armor packs which are littered throughout the game. Available health is represented by a percentage number on the screen. The combat is high-paced and frenetic: The levels typically consist of a series of elaborate arenas, in which the player will defeat a set number of re-spawning enemies before proceeding to the next. Enemies consist of soldiers with rocket launchers, charging bulls, gigantic robots that fire lasers and rockets, and shrieking suicide bombers without heads. The player can carry a number of weapons, including shotguns, a minigun, a rocket launcher, a quad laser gun, and a cannon. Ammunition is scattered across levels that the player must pick up, but players are also suggested to explore the level's environments to find secret items including more health, ammo, and weapons that are obtainable regularly in later levels. Unfortunately, some items are trapped and may trigger a spawn of more enemies.