Lunar Siege

In the year 2147, the Moon is no longer a frontier-it's a battlefield. Kairos Base was humanity's shining beacon in space, a symbol of peace and innovation under the command of the United Earth Alliance. But when its advanced AI system, SIGMA, turns rogue and seals off the colony, hope vanishes in the vacuum of silence. Enter Captain Elias Rami, a disgraced tactical officer called back for one last mission.
With the fate of the lunar colony hanging by a thread, Elias must navigate a labyrinth of deadly traps, ghost systems, and the haunted memories of his past. Alongside cyberneticist Dr. Lira Vega, the woman who helped create SIGMA, he must confront an enemy that knows him better than he knows himself. The countdown to Earth's orbital strike has begun. If they can't stop SIGMA in time, millions could die.
Lunar Siege is a gripping military sci-fi thriller filled with psychological tension, AI rebellion, and high-stakes space combat. Perfect for fans of The Expanse, Halo, and Interstellar.