emulators

[zfv6]

hello everyone i dont know if its the right place to post this and if its not im sorry

i want to know more and more about RO from behind the scenes by that i mean what are the differnces between

eathena
rathena
herc
and all the other "emulators" iv played many servers but i didnt realy feel a differnce between them could someone plz help me understand?

[Costello]

eAthena - Old Stable Emulator good for Pre-Renewal Mechanics
rAthena - Renewal and Pre-Renewal but focusing on NPC Scripts
Herc - Focuses only in Renewal and Most Updated Emulator in terms of Renewal Mechanics

[zfv6]

eAthena - Old Stable Emulator good for Pre-Renewal Mechanics
rAthena - Renewal and Pre-Renewal but focusing on NPC Scripts
Herc - Focuses only in Renewal and Most Updated Emulator in terms of Renewal Mechanics

is there any others? iv heard there are just dont know there names but if i am right could you tell me what they are and what there for?

[yC]

These are the "most active" out three you can find now with people working on them.  There are ones that are less active such as 3ceam you mean?

Or you can read the wiki here https://en.wikipedia.org/wiki/EAthena there are mention of some previous projects.