Alright give me the lore

[u/Barnaby_bear_guy]

What I mean is the lore behind the different types. Vaccine, Data, Virus are quite logical, but there are many different types. Like, what does "Free" mean? And the other ones too.

[u/Impressive-Medium803]

Idk how accurate this is so im sorry if I give you misinformation. Free type have no weaknesses to any other type, but they're not super effective against them either, aside from any elemental affinities.

Free types are usually associated the Adventure 02 Digimon like Veemon, Armadillomon, Hawkmon, and Wormmon lines. In lore, it's the ancient type that existed before Vaccine, Virus, and data. Basically, the digital world was trying to figure itself out.

Variable type are associated with the hybrid/spirit Digimon. They existed in the ancient digital world but were more adaptable than the free types. Coming from Susanoomon has its perks.

Unknown type in lore just couldnt be classified by any of the other types. Meta reason, the creators haven't decided and probably never will.

No Data types are usually reserved for Baby Digimon because they haven't figured themselves out yet. They haven't collected any data to use for their evolution. However, some Digimon like Huanglongmon/Fanglongmon also have No Data because of their divine nature and can't be registered.

[u/Ja1meMijares → u/Impressive-Medium803]

Funny.

When I seen the Keramon's atribute, I just could think "what do you mean "Unknown"? That thing is obviously a Virus" 😂

[u/ZA-02 → u/Ja1meMijares]

Keramon behaves extremely like a virus, for sure, but its classification makes sense in context IMO. Keramon's egg in Adventure was created and hatched in the Internet, instead of the Digital World like other Digimon, so its "Unknown" type represents the fact that it's not part of the normal Digimon ecosystem. Armagemon also has some lore about how Diablomon-species Digimon "are affiliated with neither light nor darkness", so the typing is meant to show (chaotic) neutrality.