db4o is the world's leading open source object database for Java and .NET. Leverage fast native object persistence, ACID transactions, query-by-example, S.O.D.A object query API, automatic class schema evolution, small size (http://developer.db4o.com)
This project has moved! Go to https://github.com/yenrab/qchybrid
RubyIDE is an opensource Ruby Language IDE for writing and building Ruby Scripts. It makes easy the Ruby Language Development.
CodeBooster is a set of DataTier generating tools written in C# that generates a stack of Data Access layers and objects from the existing schema in a database. Current databases supported are MSSQL, Oracle, and MySql.
Frigg3D is a 3D game engine with DirectX 9.0 support, BSP-level system, radiosity lighting, T&L, PS, .NET support and much more.
To provide a simple, intuitive interface for developers to add inter-process communication, across machine boundaries, for their applications.
Intel® Mobile Platform SDK 1.3 covered by BSD license, enables developers to build mobile-aware applications. It provides a set of libraries and runtime components, and programming interface, common across Windows and Linux platforms.
System.Peppers is a dll targetting missing features from the .Net core framework created by Jonathan Peppers. Includes classes to make it easier to do low level operations in C#. It is the same project as http://systempeppers.codeplex.com
aspbeans is a framework allowing translation between bean-like .NET objects and ASP web forms, allowing forms to be mapped to an object-oriented hierarchy (with relationships like many-to-one or one-to-one). Reduces coupling and makes developers happy.