These invasions are limited, meaning that they are seasonal and can only be playable during certain versions. They normally have a Seasonal: word before the name of the invasion, sometimes counted as a whole title. Old McDonnell's Farm Christmas edition oddly doesn't have a Seasonal: word before it's real name. All Limited invasions are all unlocked at Level 8 except Old McDonnell's Farm (Christmas Version), which is unlocked at the first level, like the regular one.
Zombie Farm Wiki owns a total of 7 Limited Invasion pages during the whole history, listed below:
|Old McDonnell's Farm (Christmas)||Seasonal: Spring Break||Seasonal: Easter||Seasonal: Brain Freeze||Seasonal: Halloween||Seasonal: Valentine's Day||Tree World|
All items (10)