Free Demo Guide
Use this free game demo guide to practice IRON NEST fire-control workflows, review current update notes, and launch the official free demo on Steam.
This is a game demo guide for IRON NEST: Heavy Turret Simulator: practice the fire-control workflow, check the latest release notes, and verify build-specific behavior in game.
Current Demo Reference
The main Steam app is 2950790 and the free demo is app 4300500. Availability and demo behavior can change.
Version 1.0 / Build 1683 — Patch #7
September 12, 2026 at 19:31:08 UTC: Patch #7 fixes a bug where loading a save prevented the player from sleeping. It also fixes an issue where saving and loading while reloading could leave the artillery stuck or jammed.
Log files are now smaller, and GeForce NOW support has been added.
Verify Patch #7 in the official Steam announcement (Steam app 2950790, announcement GID 1843481262698129). This site summarizes the release note and does not replace the developer's changelog.
Patch #6 History — Version 1.0 / Build 1663
August 22, 2026: Save & Resume works only when exiting a mission, creating a save so you can later continue from that save. It is not manual anytime saving.
Fixes include the Steam gold achievement unlock issue, the Iron Road consecutive-hit medal, and a train soft-lock. Patch #4 and Patch #5 also included concise accessibility improvements, including readability and control-feedback refinements.
Conditional Skirmish Roadmap
The first additional free Skirmish mission is nearing completion. October 1, 2026 is the current target, but publication is conditional: it will happen only when the mission meets the developer's quality bar. This is not a confirmed release date, and the mission is not yet released.
Steam Community items are planned, not yet available. Official examples include Steam Trading Cards, animated avatars, profile backgrounds, and stickers.
What You Can Practice
Practice coordinates, north-clockwise bearings, direct and relay vectors, triangulation, and mil conversion.
What Must Be Verified
Demo and full-game builds may differ. Check community-reference charge and elevation values in the current build.
Frequently asked questions
Where can I check the current IRON NEST demo?
Check the official Steam listing associated with demo App ID 4300500 because availability and build behavior can change.
What can I practice with the free tools?
You can practice north-clockwise bearings, direct and relay vectors, triangulation, mil conversions, and labeled reference calculations.
Are Demo and full-game values always identical?
Not necessarily. Builds may differ, so community-reference firing values and game-specific behavior should be checked in the build you use.