Warhammer 40,000: Mechanicus
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Warhammer 40,000: Mechanicus is a turn-based strategy game about the Adeptus Mechanicus finding a Necron Tomb World and trying to ensure that shit doesn't hit the fan too hard. The story for the game was written by Ben Counter.
Setting
Set some time after the creation of the Great Rift, Magos Dominus Faustinius, the commander Ark Mechanicus Caestus Metalican, discovers an old transmission from the planet of Silva Tenebris sent by a magos, who reports of an intriguing discovery on the planet. As a squad is sent down to the planet, they discover a Necron tomb, and that the magos who sent the message managed to wake them up, with your squad accelerating the process. Unable to receive reinforcements due to the Warp Rift, the members and crew of Caestus Metalican must do everything they can to stop the Necrons from completely waking and causing troubles for the Imperium at large.