Cover art of Lifeforce Tenka
Lifeforce Tenka (also known as Codename: Tenka in the US) is a first-person shooter for PC and PlayStation released in 1997 by Psygnosis. It is also known as just "Tenka" in some other forms of release.
The game is set in a futuristic action environment. The player character engages in battle with a number of various armed flying robots, stationary turrets and bipedal creatures.
Lifeforce Tenka takes place in a dystopian future where a multinational conglomerate, Trojan Incorporated, is in the process of performing presumably unethical genetic experiments. Joseph D. Tenka, the protagonist, discovers the corporation's nefarious activities and sets about bringing them and their genetically engineered army down.
The weapon design differs from similar games of the time in that instead of the player character acquiring stronger more powerful weapons to add to an accumulated arsenal, weapon modifications are picked up and added to the same weapon (known as the "Self-Generating Polymorphic armoury", or SG-26) and switched between as necessary.