Lords of Chaos is a fantasy turn-based tactical RPG developed by Mythos Games, published for 8-bit platforms, including Commodore 64 and ZX Spectrum in 1990. It was then ported to the Amiga and Atari ST in 1991. It was the sequel to Chaos, a game released in 1985 for the ZX Spectrum. Both games were designed by Julian Gollop, which created also the turn-based strategy game Laser Squad. These games are considered precursors of UFO: Enemy Unknown and X-COM: Terror from the Deep.
You are a wizard and the evil Torquemada is your enemy. You have to complete several levels, performing a certain amount of moves, collecting treasures, and defeating the enemies. It's possible to use weapons and spells, which can be created by combining different ingredients and conjuring fantasy creatures to help you.
Lords of Chaos received very high reviews, especially on the 8-bit versions. The 16-bit versions were criticized for not having state-of-the-art graphics and sound, but they are still fun and engaging.