Open Source C# User Interface (UI) Software for Linux

Modern 3D engine and IDE written using C# and C++. Vivid features all the required functionality to write modern apps ang games. Including a fully working custom GL UI called "ResonanceUI". It features lighting and shadows(Unified) and can even embed and playback videos via FFMPEG, in the UI or full screen, with fully synced audio+picture. It offers two scripting solutions: C# and a custom language called VividScript, which is an OOP style language. The Editor is based on other modern IDES of the same type, but is unique enough to stand on it's own two feet. The engine is open source, and will be funded via public funding.

A free rendered GUI library providing windowing and widgets for the easy creation of HUDs for games. It supports themes/skinning, XML-based configuration, and works with any graphics API or rendering engine including Axiom, Irrlicht, and SDL.NET.

D[osbox]Cover is a graphical user interface, or frontend, for the popular DOS emulator, DOSBox.

DEPOT is a project manager for jDoom addons (to be expanded for other ports). While designing an add-on, users often accumulate many different files, making it hard to manage them. DEPOT is a solution for this, providing easy ways to work with content.

LITS is a game development engine, which offers basic implementations of the most needed interfaces: Graphic, Network, Sound and Input. All interfaces have several (parts plattform independent) wrappers which can be choosen as needed.