They Are Billions

They Are Billions is a hardcore real-time strategy survival game set in a steampunk apocalypse overrun by the infected. Build and manage a human colony, balance economy and expansion, and engineer layered defenses to withstand overwhelming zombie swarms. Use the pause-and-plan system to issue precise commands, optimize layouts, and micromanage units under extreme pressure. Procedural maps, escalating waves, and deep tech progression reward meticulous planning, timing, and risk management.