The most important building in the game is the Command Post/Communications Centre. It allows construction of other facilities within that sector and also allows units to move into adjacent neutral and enemy sectors. If the Command Centre is destroyed in a battle, all other facilities within that sector are wiped out regardless of their condition.
Unlike most RTS computer games, units typically consist of multiple vehicles in squadrons of three or five, except for highly specialised or utility units which consist of only one vehicle. Neither side uses infantry units. The Martians use large vehicles with powerful weapons, which can take a lot of damage but begin the campaign with only one sector under their control and limited resources. The Humans have smaller, much weaker vehicles, but are capable of larger groups of units, quicker build times and more territory and resources at the start of the campaign. The humans rely mostly on mobile artillery, WWI-style tanks and ironclad warships. Some of the Human vehicles seem advanced for the game's time setting (1898), such as submarines, blimps, and tank drills. When playing on the Martian side, the player should expect to be attacked by more than a hundred human vehicles in a single battle, on some occasions. The Humans can build water units, such as Ironclads, which can greatly damage Martian defenses, while requiring the Martian ground forces to wade out into the ocean to retaliate. The Martians can build a number of extremely specialised vehicles, varying from the mind reading and manipulating Xeno-Telepath, to the Tempest, an extremely powerful machine that carries two heavy Heat-Rays and black smoke canister launcher.
Resource usage is different from the trend of the time. There are no gathering units that manually gather resources, and the resources are not used to purchase units. Instead, each sector has three resources in certain levels of abundance. Units and facilities consume these resources at a certain rate depending on the type and the action currently being performed. These resources are drawn from the sector the building or unit is in, and the sectors directly surrounding it. The more tasks assigned, the higher amount of resources required. Resource deficiencies will result in decreased efficiency, and increased time for unit/structure building and repairs. The player can build facilities to extract these resources at a faster rate. The human resources are steel, coal and oil. The Martians use copper, human blood and heavy elements.
The Martian objective is the British capital city of London. If they take the sector, a cutscene will play showing the Martians invading the city and destroying Big Ben. The human objective is the Grampian mountains in Scotland. If they take the sector, a cutscene will play showing the human population celebrating victory. Depending on which side the player has taken, there are slight differences in these cutscenes. If the Martians are victorious as the player’s faction, the Martian leaders are heard discussing their intentions as well as gloating about their victory, while if the player is defeated as the humans, the narrator describes the Martian taking of London during the scene. If the humans are victorious as the player’s faction, the narrator monologues about the victory over the Martians, but questions if Earth is safe or not, stating that “perhaps the future belongs not to us, but to the Martians”. If the player is defeated as the Martians, the Martian leaders note that they underestimated humanity’s capacity for war and that most of their resources are exhausted,though there are other options, “But now, I must face the nation”, as one of the Martian elders points out.
Although it is single player only, a semi-functional form of multiplayer appears to be accessible, with some registry modification.
Music
The game features an instrumental techno/electronica soundtrack, consisting of eight remixed tracks from Jeff Wayne's Musical Version of The War of the Worlds. These remixes were arranged, engineered, programmed and mixed by the musical group Max Mondo, along with Stephen Murphy. Jeff Wayne himself oversaw the remixing process.
There are four Red Book audio tracks on each disc. Two of them play during the war map screen and the other two play during a battle. A music player is included within the game's menu.
The music was re-used for the PlayStation game the following year, but Dead London was omitted as it was felt it did not fit with the atmosphere of said game.
Impact
It was one of the earlier real-time strategy games to use 3D models instead of sprites for units. The game also features 3D terrain, which can be used strategically. The game suffered from significant performance problems on the hardware of the time, mainly due to the sheer number of vehicles on screen (often thanks to the Humans) as well as the fact there is no 3D hardware support.
Some of the introductory animations of the game featuring the scenes on Mars were later recreated for the War of the Worlds live show.