Revelations Cycle / Four Horsemen

Five years from now a stargate blooms over Earth, and the galaxy finally returns humanity's call. The news is bad. The Galactic Union is old, vast, and run on ledgers — dozens of alien races who decided long ago that war is a service, bought and sold under the seal of the Mercenary Guild. Humanity has nothing the stars want to buy. Nothing, that is, except the one trade our species has never stopped practicing. So the sons and daughters of Earth pull on their armor, sign the contracts, and ship out to bleed for other people's money. That is the engine of the Four Horsemen Universe, built by Mark Wandrey and Chris Kennedy and worked ever since by many hands. It takes its name from Earth's four founding merc companies — Cartwright's Cavaliers, Asbaran Solutions, the Winged Hussars, the Golden Horde — whose fortunes open the Revelations Cycle and never quite close. From there the timeline widens into linked sub-series: the galaxy-spanning Omega War, the Guild Wars, Rise of the Peacemakers, the Phoenix Initiative, Exodus, the lighter-footed Jim Cartwright at Large, and shelves of anthologies where guest authors — Kacey Ezell, Kevin Ikenberry, Marisa Wolf and more — hold their own corners of the same fight. The pleasure here is nuts-and-bolts: powered CASPer armor and hard credits, alien employers who honor the letter of a deal and nothing kinder, competence prized over brooding. It reads fast and rewards anyone who likes their space opera with a quartermaster's eye on the invoice. Newcomers should start exactly where the founders did — Cartwright's Cavaliers, book one of the Revelations Cycle — then follow the marked main-storyline thread outward as the war spreads.