Axiom 3D Rendering Engine

Axiom.zip (1,2 GB)
The Axiom 3D Engine is an open-source, cross-platform 3D graphics rendering engine for .NET and Mono.

Bulby

bulby.zip (30,1 MB)
Bulby

DBreeze - C# ACID NoSql embedded object database management system.

dbreeze.zip (111,2 MB)
Professional, open-source, NoSql (embedded Key/Value storage), transactional, ACID-compliant, multi-threaded object DBMS for C# .NET 3.5> MONO.

.NET/Mono/NETMF Monitor and Command middleware for embedded projects

https://github.com/codeabilitynet/monitorandcommand
monitorandcommand.zip (251,2 MB)
The "Monitor and Command" solution builds client/server libraries providing "monitor and command" messaging for embedded projects using .NET/NETMF/Mono.

MonoGame - Write Once, Play Everywhere

MonoGame.zip (17,5 MB)
An Open Source, implementation of the Microsoft XNA 4 Framework. Our goal is to allow XNA developers to target iOS, Android, Windows 8, Mac, Linux and more!

Open Sandesa

onepotatotwotomato.zip (40 kB)
Highly intelligent chat server ever written in the history of technology.