Total Annihilation - Arm Gameplay [HD]

Showing a bunch of missions from the Arm campaign.

Total Annihilation is a real-time strategy game made and published by Cavedog Entertainment released in 1997. Two expansion packs were released in 1998, The Core Contingency on April 29 and Battle Tactics on July 20, while a medieval-themed spin-off called Total Annihilation: Kingdoms was released on June 25, 1999.

When starting a new game, the player normally begins with a lone Commander. The Commander is a powerful and irreplaceable unit that has a number of unique abilities such as a desintegrator gun ( or short D-Gun) that vaporizes anything it hits, the ability to use cloaking and become invisible, and the ability to travel through bodies of water. Construction is governed by the possession of the game's two unlimited resources, Metal and Energy, and can be undertaken by factories or mobile construction units. Every unit belongs to a level of technology (tech level); the higher the level, the more advanced the unit and the more resources and thus time required to construct it. A feature of the game is the ability to easily "queue" the many commands for a unit or group of units, with types of commands including patrolling a route, constructing a defensive group of structures and attacking enemy units. Once given its commands, the unit will go about them automatically thus minimizing the need for the player's attention to small, repetitive tasks. The victory conditions of a multiplayer game generally involve the elimination of all enemy units, but the aim of single player campaign missions can be more specialized.

Resources in Total Annihilation are handled in a manner different from other real-time strategy games of the day: they are "streaming", meaning that they are accumulated at a constant rate rather than in small batches; and they are limitless. In addition, all units and structures have a fixed cost, but they build at varying rates depending on the unit constructing them. A Commander, for example, will build a structure three times faster than a construction vehicle, but at a higher cost in energy. If the rate at which resources are used exceeds the rate at which resources are acquired, then the player's reserves will begin to be depleted. If a player's reserves are entirely depleted, the player's production across the board will slow to a rate proportional to the amount by which outflow exceeds income, this is known as "nanostalling". In addition, if the player runs out of energy, power-dependent structures such as radar towers, metal extractors, and laser towers will cease to function. This adds an element of economic complexity unparalleled in most RTS games of the time period. When a unit or structure is destroyed, it leaves behind wreckage that may be reclaimed for a lump sum of metal. Many terrain structures may also be reclaimed for their metal. Some maps also have plants or other organic structures that can be reclaimed for energy.

The game features a physics engine which governs projectiles, explosions and wreckage. The terrain is displayed as a 2D raster image but contains height values that allow it to act as a 3D surface. Hills obstruct artillery fire, and, depending on the "line-of-sight" setting, height enhances units' visual and firing ranges. If terrain is steep and jagged, units tilt and turn to meet the face of the ground, slowing down or speeding up in accordance with gravity. Structures can be built on steep terrain to protect them from artillery fire and to create choke points. The wind, tides, and gravity on different maps also vary; some maps have strong wind gusts and are more suited for gathering energy via windmills. Plant life is often flammable and can be set on fire by shooting it.

Source: Wikipedia