AI Storytellers - RimWorld Wiki (2024)

The AI storyteller is the main mechanism used to determine game difficulty and play style. There are currently three presets for narrative settings. Each preset features different raid frequencies and an eponymous cartoon mascot. The player must choose either Cassandra Classic, Phoebe Chillax, or Randy Random to act as their "unseeable God." They will periodicallycreate events for your colony, including pirate raids, resource drops, or manhunter animal packs. The AI Storyteller does not have an in-game body, location, or manifestation; it is just a name given to describe game settings.

Your choice of storyteller sets the tone for your colony - a more benevolent storyteller like Phoebe will send trade caravans or helpful travelers after hitting your colony hard with a tough raid.

The frequency and type of storyteller events are based on a number of factors. Colony wealth, building wealth, colonists count, animal count, if a colonist has died or been severely wounded recently, and how long it has been since the last major event are all considered before a storyteller event occurs.

The difficulty is adjusted separately from the storyteller, however, some storytellers are less merciful than others. Both difficulty and storyteller are changeable mid-game from the Settings Menu, with no downside or penalty.

Current AI storytellers[edit]

Difficulties[edit]

There are 6 default difficulties:

Each difficulty works by changing the values of each setting, displayed down below. Using the Custom difficulty will allow you to change each setting yourself. The default values are based on the "Strive to survive" difficulty level, where most values are at 1.0, or 100%. When creating a custom difficulty, you can use the "Set to Standard Playstyle" button to change the values to one of the 6 default difficulties.

Commitment mode[edit]

When creating a game, the player must choose between "Commitment" and "Reload anytime" mode. Unlike storyteller and difficulty, this cannot be changed after game creation. If desired, you can disable (or enable) commitment mode by editing the save file.

With reload anytime, you can save and reload the game as you wish. Good if you're still learning the game, if you intend to self-enforce commitment mode, or if you want to have a more relaxed experience. RimWorld is a single player game - nobody will judge you for playing with saves.

In commitment mode, you only get one save file and can only save when quitting the game. You cannot reload the game to fix mistakes. When the entire colony dies, but only when the entire colony dies, that's it. This is the way RimWorld was meant to be played with every dramatic turn - whether tragic or hopeful - played out to full impact. (Note: this can be dangerous if you use lots of mods - if something soft-locks, you cannot go back to an earlier save to avoid the situation!)

Options[edit]

Threats[edit]

Options	Description	Value options	Peaceful	Community builder	Adventure story	Strive to survive	Blood and dust	Losing is fun
Threat scale	Adjust the size of threats like raids (using raid points) and infestations, and the difficulty of quests.	0% - 500%	10%	30%	60%	100%	155%	220%
Major threats	Allow major threats such as raids, infestations, manhunter packs, crashed mechanoid ships and more.	Toggle
Quests threats	Allow quests to present with violent threats and challenges. If this is disabled, quests will be modified to be non-violent.	Toggle
Intro threats	Enable the fixed intro threats that appear near game start.	Toggle
Predators hunt humans	Allow wild predators to hunt humans.	Toggle
Extreme weather	Allow extreme weather incidents such as toxic fallout, volcanic winters and flashstorms.	Toggle

Economy[edit]

General[edit]

Options	Description	Value options	Peaceful	Community builder	Adventure story	Strive to survive	Blood and dust	Losing is fun
Colonist mood	A permanent mood offset applied to every colonist and prisoner. Colonists have a base mood of 50%.	-20 - +20	+10	+10	+5	+0	-5	-10
Food poison chance	Adjust the chance that a person will get food poisoning from eating a potentially-poisoned meal.	0% - 500%	30%	50%	75%	100%	110%	120%
Animal revenge chance	Adjust the chance that injuring a wild animal will cause it to attack.	0% - 500%	25%	100%	100%	100%	100%	100%
Infection chance	Adjust the chance that a wound will become infected.	0% - 500%	30%	50%	75%	100%	100%	110%
Disease frequency	Adjust the frequency of random disease events.	0% - 500%	33%	40%	67%	100%	105%	111%
Insect spawning rate	Adjust the rate at which existing insect hives spawn new insects. Lower values means more time between spawn events. This does not affect whether infestations can occur - only the speed at which active hives produce insects.	0% - 500%	10%	15%	50%	100%	100%	100%
Deep drilling infestations	Adjust the chance that deep drilling will trigger an infestation.	0% - 500%	0%	25%	75%	100%	110%	130%
Friendly fire	Adjust the chance of friendly fire. Note: This setting only affects direct shots which were going to hit their target. It does not prevent damage from explosions, or from shots which were going to miss their target.	0% - 100%	40%
Colonist instant kills	Adjust the chance that a colonist can die instantly due to an attack. The incoming damage is adjusted so it will down the colonist instead. This only prevents some kinds of instant kills - colonists can still be downed and bleed to death, die from fire, explosions, disease, and so on.	0% - 100%	100%
Map generation ancient threats	Ancient structures may contain dangerous threats.	Toggle
Map generation natural hives	Dormant insect hives may spawn in natural caves. This setting only applies to map generation and does not affect active insects that may tunnel in during play.	Toggle

Player tools[edit]

Options	Description	Value options	Peaceful	Community builder	Adventure story	Strive to survive	Blood and dust	Losing is fun
Player can build spike traps	Player can build traps like spike traps and IED traps.	Toggle
Player can build turrets	Player can build static turrets like mini-turrets, autocannon turrets, and uranium slug turrets. You can still use captured turrets even if this is disabled.	Toggle
Player can build mortars	Player can build mortars. You can still use captured mortars even if this is disabled.	Toggle
Classic mortars	Mortars will not require reinforced barrels to construct or reload, and are balanced for this ease of access. With "Classic Mortars", mortars are as they were before 1.3. Namely: The barrel need not be changed every 20 shots. Reinforced barrels are removed from the recipe and game. Forced miss radius increased from 9 to 13. Steel cost of all mortar shells increased by 10. Note that the Mortar Miss Radius Multiplier still applies with this setting applied.	Toggle

Adaptation[edit]

Options	Description	Value options	Peaceful	Community builder	Adventure story	Strive to survive	Blood and dust	Losing is fun
Adaptation growth rate	Adaptation means the storyteller makes the game more challenging when you're doing well. An adaptation score grows over time, and is knocked down when you take damage. This setting adjusts how fast the adaptation score grows over time.	0% - 100%	0%	25%	75%	100%	100%	100%
Adaptation impact	Adaptation means the storyteller makes the game more challenging when you're doing well. An adaptation score grows over time, and is knocked down when you take damage. This setting adjusts how much the adaptation score affects the difficulty.	0% - 100%	100%	100%	100%	90%	70%	40%
Wealth-independent progress mode	Play in a wealth-independent progress mode. In normal mode, the storyteller scales threats according to colonist count, player wealth, and a variety of other factors. Wealth-independent mode removes the wealth factor and replaces it with a fixed progress curve based on time. The time is counted from the founding of each colony. This is only recommended for those looking for a strict skill challenge. In wealth-independent mode, it may be nearly impossible to recover from serious losses unless you found a new settlement. It's also possible to get too far ahead of the curve and find the game too easy.	Toggle
Years until maximum threat	The number of game years until the wealth-independent mode reaches its maximum threat level. Note that the storyteller will still scale threats according to colonist count and a variety of other factors.	1 - 20	12

Ideology[edit]

Biotech[edit]

Options	Description	Value options	Peaceful	Community builder	Adventure story	Strive to survive	Blood and dust	Losing is fun
Wastepack cocoon infestation	Adjust the chance that a dissolved wastepack will trigger the arrival of insect cocoons.	0% - 500%	0%	25%	50%	100%	150%	200%
Babies always healthy	Human babies are always born healthy. Mothers can't die in childbirth or have miscarriages.	Toggle
Disable children	Humans can't become pregnant. Human babies and children will never appear unless you choose them as starting colonist.	Toggle
Child enemies	Hostile raids will sometimes include children.	Toggle
Child aging rate	Adjust the rate at which babies and children will age.	100% - 600%	400%
Adult aging rate	Adjust the rate at which adults will age.	100% - 600%	100%

Anomaly[edit]

These settings determine if the Void monolith spawns and how Anomaly threats are treated by the Storyteller.

Standard with monolith options[edit]

Options	Description	Value options	Peaceful	Community builder	Adventure story	Strive to survive	Blood and dust	Losing is fun
Anomaly threats inactive	Adjust the percentage of major threats that will be Anomaly-related when the monolith is not active. Only certain minor Anomaly incidents can occur when the monolith is inactive.	0% - 100%
Anomaly threats active	Adjust the percentage of major threats that will be Anomaly-related when the monolith is active. The percentage of major threats that are Anomaly related when the monolith is at levels 2, 3, and 4 is this setting multiplied by 1.5x	0%-100%
Study efficiency	Adds a multiplier to how much research is gained when studying unnatural entities.	0% - 500%	200%	120%	100%	100%	90%	80%

Ambient horror options[edit]

Options	Description	Value options	Peaceful	Community builder	Adventure story	Strive to survive	Blood and dust	Losing is fun
Anomaly threats	Adjust the percentage of major threats that will be Anomaly-related.	0% - 100%
Study efficiency	Adds a multiplier to how much research is gained when studying unnatural entities.	0% - 500%	200%	120%	100%	100%	90%	80%

Technical info[edit]

Trivia[edit]

• The "Losing is fun" difficulty is a reference to the game Dwarf Fortress, which also happens to be that game's tagline. More specifically, it refers to Dwarf Fortress lacking a definite ending, as the game will end with the player losing no matter how skilled they are.

Version history[edit]

• 0.0.254B - Added Chill Callie Classic storyteller. Rebalanced Cassandra’s raiders to not send advanced enemies too early, and to pace them a bit slower.
• 00.1.334 - Kassandra renamed to Cleopatra.
• 0.4.460 - Storytellers now focus on wealth and let you recover from serious damage.
• 0.11.877 - Storytellers no longer entirely disallow events because of population. Randy’s event chances are affected by population (somewhat). Re-tuned storyteller population intent based on new output tables for smoother population gain with higher maximum and better recovery at small populations
• 0.13.1135 - Permadeath mode added - One save file, save on quit or autosave only.
• The names of the difficulty levels were changed from 1.0 to:
  • Peaceful
  • Builder
  • Medium
  • Rough
  • Savage
  • Merciless
• 0.14.1236 - Fix: Storyteller incorrectly adjusts trader frequency in relation to ally count.
• 0.14.1238 - Phoebe’s random incidents density reduced. Previously the same as Cassandra’s, which conflicted with Phoebe supposedly giving more breathing space between events.
• 0.14.1241 - Reduced event density on Randy Random from 1.5x that of Cassandra to about the same as Cassandra. The combination and distribution of events is still very different from Cassandra. Toxic fallout, flashstorm and volcanic winter are now disabled in Free Play difficulty.
• 1.1.2647 - they have changed again to the following:
  • Peaceful
  • Community builder
  • Adventure story
  • Strive to survive
  • The price of survival is blood
  • Losing is fun
• 1.1.2654 - "The price of survival is blood" was changed to Blood and Dust.
• 1.2.2719 - Custom playstyle system added. You can now select a new custom playstyle setting. This opens up a new menu that allows you to customize a large number of different settings exactly as you prefer.
• 1.2.2753 - Rename "fixed wealth" mode to "wealth-independent" mode, and give the player a slider to control how many years until this mode delivers its maximum threat level.
• 1.3.3200 - Turret ammo cost is no longer factored by difficulty.
• 1.4.3555 - Renamed "child raiders" storyteller setting to "child enemies" to be more accurate. Allow modifying the “child aging rate” and “babies are healthy” storyteller settings even if children are disabled, in case there are already children in the game. Fix: Wastepack cocoon infestation storyteller setting appearing in the wrong spot.

Category:

• AI