
Floor rating is affected by the other three statuses. The 'all informants alive' bonus can only be obtained if all informants survive after the first two bonuses are obtained.

Total Points is affected by both the enemies destroyed and the treasure collected. In every level the player can boost points for score by destroying all enemies, collecting all points and keeping all Informants alive, which increases the three respective statuses. Five weapons are available, consisting of a silent pistol with infinite ammo, three hitscan guns and a grenade launcher type gun. Level features include locked doors that can be opened by four colors of access cards – gold, green, yellow and blue – plus red access cards to enter new floors an auto-mapping system food dispensers that exchange tokens for healing items friendly interactive Informants who are distinguishable from the Bio-Techs by what they say and give information, ammunition and tokens one-way doors secret rooms accessible through pushable wall blocks and teleporters that instantly take the player into another location within the level, or, in one instance, to one of the episode's secret levels. Playable areas are single-leveled, with orthogonal walls and textured floors and ceilings, and have a wide variety of human, mutant and alien enemies – the latter two are sometimes dormant in canisters and on work tables – and frequent encounters and fights with Dr. The gameplay of Aliens of Gold is very similar to Wolfenstein 3D. Agent Stone is sent on a mission to knock out six crucial STAR installations and destroy Goldfire's army before it can assault the Earth. Goldfire plans to conquer Earth and enslave humanity using an army of specially trained human conscripts, modified alien species, and a host of genetically-engineered mutants. Backed by his own organization, STAR, Dr. Pyrus Goldfire, a brilliant scientist in the field of genetics and biology, known for his outright disrespect of professional ethics.

His first major case is to investigate and eliminate the threat of Dr. Robert Wills Stone III, also known as Blake Stone, is an agent of the British Intelligence, recruited after a highly successful career in the British Royal Navy. Some copies of the game provided a Command Control Gravis Gamepad. The following year, a sequel called Blake Stone: Planet Strike was released, which continues where Aliens of Gold leaves off. Blake Stone: Aliens of Gold (also known as Blake Stone 3-D) is a first-person shooter for DOS created by JAM Productions and published by Apogee Software on December 5, 1993.
