MechWarrior 4: Vengeance is a Vehicle Simulation game, developed by FASA Interactive and published by Microsoft. It was released on November 22, 2000. It is the fourth game in the MechWarrior series. It takes place in the BattleTech universe, where the pinnacle of all war machines is huge, heavily armed robots called BattleMechs. The player pilots one of these "'Mechs" and uses a variety of available weapons (autocannons, lasers, missiles, and more) to battle enemy 'Mechs, tanks, and other vehicles. An expansion pack, MechWarrior 4: Black Knight, was released in 2001, and a subsequent stand-alone expansion, MechWarrior 4: Mercenaries, was released on November 7, 2002.
Mechwarrior 4 is a first-person mecha simulation game, in which the player pilots a Mech on each mission. Mechs are armored and equipped with various missile and energy weapons, and engage in combat with other Mechs, as well as traditional military vehicles such as tanks and helicopters, and occasional gun emplacements. During combat, a Mech's critical weapons and components can be damaged, and it's even possible for entire limbs to be blown off a Mech.
Mech customization is an important aspect of the game. The player has significant control over the configuration of each of their Mechs, from the type and amount of armor used and some internal components to all of the Mech's weaponry and ammunition. In the campaign, additional Battlemechs and weapons are acquired through loot salvage/battlefield missions and as rewards for success. The Mech configuration system has been simplified from that seen in MechWarrior 2 and MechWarrior 3.
In the campaign, the player controls up to three squadmates, with the ability to give basic commands such as attacking and moving.
Operating System: Microsoft Windows XP
Processor: 500 MHz
RAM: 128 MB
Video Card: 32 MB
Hard disk space: 6.84 GB