The open source nature of The Mana World allows everyone to use it as a base for creating an own game. A lot of teams have made use of this opportunity. Projects listed on this page don't work with the official client. Those that are are listed on the Servers article.
Active forks
These are projects which are still in active development.
Aethyra
A fork of TMW based on the eAthena branch with most of the content from the original TMW, with plenty of custom content.
Mundo Dos Dragões ( World of Dragons )
A Brazilian fork of TMW based on the eAthena branch with a completely new game world made from RPGMaker tiles.
Whispers of Avalon
Is a branch of TMW currently in Early stages of development, it will feature revised graphics and an innovative PVP system.
Inactive forks
These are projects based on TMW which are unfortunately not active anymore.
Sirus Online
An eAthena-based branch formed by people frustrated with the management of Endless Online. It had a quite good start until most players and some developers decided to rather play and develop the original TMW.
Damasca
A project very similar in scope to The Mana World, although programmed in C# instead of C++. When the development slowed down because of insufficient manpower it was attempted to rescue the project by using TMWserv and the TMW client which were already much further in their development. Unfortunately it did not turn out so well.
Evol Online
A French fork of TMW which used the TMW software with a completely new world made from RPGMaker XP graphics. It was inactive for a long time due to financial problems but the creator plans to revive the project soon with a codebase based on the 0.0.26 relase of tmw.
