Irongrim Tower

In the factory world of Hephaestus, industry burns and a once mighty civilization lies in ruin. Endless xeno hordes swarm the surface, and you stand as Station Commander, guiding humanity’s last fortress—a lone sentinel tower that must defend a dying world while growing into a vertical city.

Irongrim Tower fuses tower defense with city-building strategy in a dark science fiction universe. Build upward from a central core, layer by layer, to craft a towering bastion that serves as both fortress and metropolis, all while managing supply chains, energy, and defenses against relentless alien assaults from multiple directions.

Build Your Vertical Empire

• 120+ Building Types across categories: residential districts, industrial facilities, power infrastructure, defensive installations, religious shrines, specialized laboratories, and modular support hubs.
• Construct upward, layer by layer, growing a towering bastion that is both fortress and metropolis with careful zoning and skyline planning.
• Underground Expansion: drill beneath the surface to uncover ancient secrets, extend tunnels, and exploit subterranean resources to stabilize your city.

Command Your People

• Transform colonists into factory workers, machine priests, biomancers, engineers, and elite combat specialists, each with unique traits that affect productivity and combat performance.
• Population dynamics: every colonist carries stats, backstories, and specializations that influence efficiency, morale, and discovery of new possibilities.
• Recruit and train defenders including assassins, officers, and specialized military units; build mixed squads for versatile responses.
• Worker assignment: strategically allocate personnel to maximize output, unlock building potential, and adapt to shifting threats.

Defend Against the Xeno Threat

• Face endless waves of alien invaders with distinct combat roles, from skirmishers to heavy artillery, and adapt your defenses on the fly.
• Enemies assault from left and right flanks simultaneously, forcing tactical tower placement and multi-front defense lines.
• Diverse enemy types, each with unique behaviors and abilities—shields, burrowers, flyers, and swarms—that demand adaptive strategies.
• Survive escalating attacks as enemy numbers and varieties grow, pushing you to upgrade defenses and optimize resource flow.

Technology & Faith

• Discover ancient artifacts and embrace machine religions that shape your technological advancement and tower culture.
• Archaeological Discovery: uncover technology shards through drilling and exploration, unlocking new tech paths and synergies.
• Arrange artifacts on religious grids to unlock powerful upgrades and new capabilities, balancing science and faith to empower your core.

Prepare to rise as a vertical sovereign in a dying world, where strategy, resource management, and faith decide humanity’s fate.