Half-Life on the PlayStation 2 is a port of the game that was originally released for Windows. However, a large amount of work was done to update the weapon models and character models, as well as the general map geometry and several additional levels.
It also includes an expansion pack known as Half-Life: Decay, which was never officially released as an expansion for the Windows game until it was eventually rebuilt as a modification. Prior to this, the only way to play the Half-Life: Decay expansion was through a modification. This is the third extension for the base game, and it adds a cooperative mode for two players that takes place on a split-screen, with the two protagonists being two female scientists named Gina Cross and Colette Green. Because it focuses more on puzzles than the base game and the first two expansions, it is designed to be played with two players at the same time. Singleplayer is also an option; however, in this mode, you will need to alternate between your two characters in order to make progress. The basic acts of the other character are taken care of by the AI while it is not engaged.
It takes place within the same time period as the events of the first Half-Life game, but from the point of view of a different cast of characters. The original game serves as the inspiration for all of the game’s foes and weaponry, and many of the missions have a cooperative focus on helping NPCs or working together to complete their objectives. The series as a whole is distinguished by the absence of a continuous narrative; in its place, the add-on is comprised of independent, predetermined tasks. At the conclusion of each mission, the player is presented with a grade and their statistics are displayed. After completing all nine stages with a grade of A, players will be able to access a bonus mission in which they will take control of two Vortigaunts and collaborate with one another. After that, the full single-player experience can also be finished off as a Vortigaunt, which is an added bonus.
The game is compatible with a mouse and keyboard connected through USB, allowing for more precise control.
