Verdict Iron Nest: Heavy Turret Simulator is a claustrophobic 9 to 5 where loading 12-foot explosive rounds and triangulating enemy artillery becomes second nature. Iron Nest is a test of my organizational skills, my ability to read instructions, and a lot of pulling various levers - there is also a giant artillery battery on legs. Iron Nest is a heavy turret simulator, just like the title says. Thankfully, the Iron Nest dev thought of this and supplied me with an in-game one that attaches whatever information I need with a click of my mouse. I'm glad this did become second nature, as Iron Nest ramps up fairly quickly.