Written in C++, based on Forgotten Server 1.Series.
We are trying to create the perfect custom open tibia server.
https://github.com/mattyx14/otxserver/tree/otxserv3/
===========
##Servers
OTLand
Main OpenTibia Community
https://otland.net/
TibiaKing
OpenTibia Community
http://www.tibiaking.com/
OTServBR
OpenTibia Community
http://forums.otserv.com.br/
BlackTibia
OpenTibia Community
http://blacktibia.org/
Tibia Face
OpenTibia Community
http://tibiaface.com/forum/
Vapus
OpenTibia Community
http://vapus.net/forum/index.php
===========
##Servers
Forgotten Server by OTLand
Written in C++, based on OpenTibia server
https://github.com/otland/forgottenserver/
Open Tibia Server by OpenTibia
Written in C++
https://github.com/opentibia/server/
OTX Server 2 by Mattyx14
Written in C++, based on Forgotten Server 0.3.7 - r5969 (0.4.5969)
https://github.com/mattyx14/otxserver/tree/otxserv2/
PyOT by Stian
Written in Python 3, actually uses Mercurial and BitBucket but still resourceful
https://bitbucket.org/vapus/pyot/
##Clients
OTClient by Eduardo Bart
Written in C++
https://github.com/edubart/otclient
YATC by OpenTibia
Written in C++
https://github.com/opentibia/yatc/
##Map Editors
Remere's Map Editor by Hampus Joakim Nilsson
Written in C++
https://github.com/hjnilsson/rme/
Remere's Map Editor by Reymundo Urrutia
Written in C++
https://github.com/ricker75/Remere-s-Map-Editor-10.80/
MapEditor by OTLand
Written in Go
https://github.com/otland/mapeditor/
Forgotten Map Editor by Ahmed Samy
Written in Lua
https://github.com/asamy45/forgottenmapeditor/
##Item Editors
ItemEditor by OTTools
Written in C#
https://github.com/ottools/ItemEditor/
ItemEditor by OpenTibia
Written in C#
https://github.com/opentibia/item-editor/
##Distributions
ForgottenServer-ORTS by ORTS
Written in Lua, work in TFS
https://github.com/orts/server/
##Editors for .dat, .spr, .pic
ObjectBuilder by Mignari
Written in ActionScript
https://github.com/ottools/ObjectBuilder/
##Tools
Flags Calculator by Ranieri Althoff
Written in CoffeeScript
https://github.com/ranisalt/flags-calculator/
Flags Calculator by Bruno Carvalho
Written in JavaScript
https://github.com/comedinha/flags-calculator/