IRON NEST’s branching paths are tied entirely to what you load into the chamber and where you point the barrel. Miss a shell type or fire at the wrong target, and you’ll lock yourself out of an ending for that entire run. This guide breaks down every ending, the exact ammunition or action that triggers it, and the result you’ll see on screen. One playthrough per ending, clean and efficient — no wasted runs.
Four Endings
| Ending | Trigger | Result |
|---|---|---|
| Peace | STAR or PROPAGANDA shell | Peace ending |
| Barcelona Subdued | TEAR shell | Barcelona subdued ending |
| Betrayal | Fire on the general, then all artillery | Betrayal ending |
| Nuke | Fire the nuke | Nuke ending |
The logic is simple: your shell choice is the story branch. There are no hidden dialogue trees or timing windows to worry about. Load the right round, commit to the action, and the ending follows.