An open source RDP server
LibVNCServer/LibVNCClient are cross-platform C libraries
High-speed, 3D-friendly, TightVNC-compatible remote desktop software
Development toolkit for Web Services and XML data bindings for C & C++
Browse on Tor/i2p, Anon p2p Chat / FileTx, Conf / Video VoIP
A SSH based chatroom.
DOOM / Heretic / Hexen source port with enhanced graphics and UI
Git GUI Client
File sharing client with chat
HTML5 Clientless Remote Desktop
Qt based VNC viewer with MAME/MESS specific extensions
The GTK Remote Desktop Client
An social musicsystem for your Pi and smartphone.
SkipBo! server and Qt client
Twin is a "retro" program for embedded or remote systems
HoldingNuts is an open source multi-platform poker client and server