PowerSlave

PowerSlave is set in and around the ancient Egyptian city of Karnak in the late 20th century. The city has been seized by unknown forces, with a special crack team of hardened soldiers sent to the valley of Karnak, to uncover the source of this trouble. However, on the journey there, the player's helicopter is shot down and the player barely escapes. The player is sent in to the valley as the hero to save Karnak and the World. The player must battle hordes of extraterrestrial insectoid beings known as the Kilmaat, as well as their various minions, which include mummies, Anubis soldiers, scorpions, and evil spirits. The player's course of action is directed by the spirit of King Ramses, whose mummy was exhumed from its tomb by the Kilmaat, who seek to resurrect him and use his powers to control the world. The game's mid-game boss is the god Set.
In the console versions, there are two endings, depending on the player's course of action during the game. In the good ending, the protagonist has collected eight pieces of a radio transmission device, so he can send a rescue signal and be extracted from the Valley. After reclaiming the mummy of Ramses, the Pharaoh thanks him for his effort, and promises the protagonist that he will inherit Ramses' Earthly kingdom, and that the Gods will bless him with eternal life and make him ruler of the world. After escaping the collapsing tomb, the protagonist is indeed rewarded as such, and becomes a powerful and benevolent Pharaoh of the entire planet. In the bad ending, the player has failed to collect all eight pieces of the radio transmitter, and the protagonist is subsequently buried in the tomb of Ramses, only to be excavated centuries later by the now ruling forces of the Kilmaat and put on display as the last human corpse.
In the MS-DOS version, there are two slightly different endings, again depending on the player's course of action, but only in the final stage. The final stage takes place aboard the Kilmaat mothership, where a nuclear weapon has been armed and is set to go off in 15 minutes, and has enough power to obliterate the planet. In the bad ending, which occurs if the player loses all of their lives or fails to disarm the bomb in time, Earth is destroyed in a massive nuclear blast. In the good ending, which occurs if the player makes it to the bomb on time, the Kilmaat retreat from the planet, but the main character is stuck on their ship and needs to find a way off.