Each substance has an '''addition chance per use''', which refers to the chance of developing an addiction to this substance every time one instance is consumed.
If an addiction is indeed developed by a creature and they Withdrawal levels are not currently under the effects of the corresponding substances, they will enter '''Level 1 withdrawal''' and sustain tied to the corresponding [[EffectsDaily Reset]]. A 50-turn counter is then startedEach addiction brings 3 levels of withdrawal, each one worse than the last.* If When entering a creature under Level 1 withdrawal fails to seek treatment or an appropriate substance before that counter ends, then they will enter '''Level 2 withdrawal'''higher level, and the corresponding effects are applied instead. A 100-turn counter then begins.* The same principle applies while under Level 2 withdrawal; failure to seek treatment or an appropriate substance before of the higher level replace that counter ends will result in entering '''Level 3 withdrawal'''. These effects are permanent until treatment or consumption occurof the lower level.
Each level usually brings worse If an addiction is indeed developed by a creature and they are not currently under the effects than of the lastcorresponding substances, they will immediately enter '''Level 1 withdrawal''' and sustain the corresponding [[Effects]]. When entering If a higher levelcreature already under Level 1 withdrawal has failed to either seek treatment or more of the substance by the next Daily Reset, then they will enter '''Level 2 withdrawal''', and the corresponding effects are applied instead. If a creature already under Level 2 withdrawal has once again failed to either seek treatment or more of the higher level replace that of substance by the lower levelnext Daily Reset, then they will enter '''Level 3 withdrawal''', and the corresponding effects are applied instead. Level 3 effects are permanent until treatment or consumption of more.
If an addiction has been developed, withdrawal effects can only be removed in one of two ways:
* Temporarily, by consuming more substances from the addiction group, to ward the withdrawal effects away. This temporarily disables all levels of withdrawal effects for as long as the substance's effects last. When the effects of the substance dissipate, the creature returns to withdrawal level 1, but this also means the addiction remains and is only temporarily warded awayhas a chance to get worse again.
* Permanently, with the help of a [[hospital room]], which may offer treatment to permanently get rid of addiction and addiction symptoms ('''1000 P$''' to cure one addiction; full treatment of multiple addictions may cost more).