Iron nest: heavy turret simulator town building guide
Town basics

Town building in IRON NEST: Heavy Turret Simulator is the hub work you do between fire missions. Your iron nest is a colossal war machine, and the town is the fortified position built around it to keep the gun measured, loaded, and aimed. The game launched on Aug 6, 2026 at $14.99, developed and published by Nick Nieuwoudt and Dominik Latos. It is an Action, Indie, and Simulation title with a strict single-player focus, full controller support, Steam Achievements, and Steam Cloud saves, so the whole town is built around one operator: you.
The town loop mirrors the artillery routine: take map measurements from the received coordinates,strain the hydraulics, and gunlay the cannons before the shot breaks. Treat these three actions as the core districts of your nest, and town building becomes a preparation game instead of a reaction game.
Take map measurements based on the received coordinates, strain the hydraulics, and gunlay the cannons to unleash devastating blows.
- Measurement station: your map table and coordinate board, the starting point for every operation.
- Hydraulic bay: the machinery that takes the strain when you lay the gun for a heavy shot.
- Gunlaying station: the final aiming position before you commit to fire.
- Supply and medal track: the campaign operations feed your town's long-term growth.
Keep the nest tidy before the first shell flies: a clear coordinate board, a settled hydraulic system, and a quiet gunlaying position beat a rushed sequence on every operation.
Upgrades and progression
Progression runs through the named operations and the medal system attached to them. Each operation can be replayed for medals, and gold-tier completions are your main upgrade path. The campaign spine runs from Calibration Fire and Fire and Light through Liberation,Counter-Battery,Iron Road,Siege of Cartagena,The Gorge,Rock of Gibraltar,Dead Reckoning,Fire on Call,High Tide,Blind Fire,Phantom Battery,Final Harvest, and White Shells.
Set early town goals in order. Land the Calibration Fire first to zero the weapon, then push for Duty Fulfilled(gold on all medals in "Calibration Fire") and Marksman's Honour(gold on all medals in "Fire and Light").
- Early campaign: gold in "Calibration Fire" and "Fire and Light" first.
- Mid campaign:Iron Discipline for gold in "Fire on Call" and Valour Under Fire for gold in "The Gorge".
- Late campaign:Master Gunner for gold in "Phantom Battery",Night's Precision for gold in "Final Harvest", and Pride of Castile for gold in "White Shells".
- Total tracking:33 achievements cover the whole progression arc; see the Achievements page for the full