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{{Version|Timeless}}

[[File:Ironman.png]] '''Ironman''' is an optional gameplay flag that restricts control over the [[Save-game editing|save file]], disallowing the player from correcting mistakes and changing decisions made during the course of play. Playing in Ironman is required to unlock Steam [[achievements]].

Ironman mode can be enabled from the settings screen when starting a new game:
*[[File:Ironman enabled.png|60px]] Ironman is enabled.
*[[File:Ironman enabled restrictions.png|60px]] Ironman is enabled, but achievements are not, due to use of [[Ruler Designer]] or [[mods]] that alter gameplay.
*[[File:Ironman disabled.png|60px]] Ironman is disabled (default).

==Restrictions==
Ironman has a number of restrictions:

*Restrictions to prevent save-scumming
**Only a single save will be stored; it is thus impossible to load an earlier save if something goes wrong.
**The game saves automatically every six months (on January 4th and July 4th), as well as ten days after a savefile is loaded.
***If a savefile is loaded to a date fewer than ten days before January or July 4th, saving on January or July 4th will be skipped.
**Save files are stored in the player's Steam account's 'Steam Cloud', online. A backup is available. Or the Steam Cloud save can be disabled by the player for local saves only.
*Restrictions to prevent cheating
**Cannot switch to another character using the lobby.
**The [[console]] is disabled (even harmless commands like `hello` and `recalc_succ`)
**The save-file is compressed and tamper-proofed by using a checksum of the save data.

==Issues==
Ironman increases the risk of potential save file corruption by seriously limiting the amount of saves a play may create. The player may not create a secondary save file and autosaves will always overwrite the same file which means that the corruption of an Ironman game could easily mean a premature end of game.

If at any point while playing an Ironman game the player loses Internet access, therefore causing the game to save locally, Steam [[achievements]] will be disabled.  However, the game may have achievements restored if the game manages to successfully cloud save before the game gets closed. Or the Steam Cloud save can be disabled by the player.

==Version history==

* Ironman was introduced with [[patch 2.0]].
* [[Patch 2.0.2]] allowed play in Ironman mode with the [[Ruler Designer]] and/or mods activated, but with achievements disabled.
* [[Patch 2.1.5]] made Ironman autosave every six months instead of every month, allowing Ironman games to go significantly faster.

[[Category:Crusader Kings II]]