MonoGame - One framework for creating powerful cross-platform games.

•    CSharp

One framework for creating powerful cross-platform games. The spiritual successor to XNA with 1000's of titles shipped across desktop, mobile, and console platforms. MonoGame is a fully managed .NET open source game framework without any black boxes. Create, develop and distribute your games your way. It is an Open Source implementation of the Microsoft XNA 4 Framework. Our goal is to allow XNA developers on Xbox 360, Windows & Windows Phone to port their games to any platform

DeltaEngine - Open Source Multiplatform Game Engine, C# OpenGL Version (custom wrapper) including the Editor

•    CSharp

The Delta Engine is allows you to develop applications and especially games for many different platforms (mobile, tablets, console, PC) completely under Windows with .NET by using your favorite tools. It is free to use on Windows, Open Source and written in C# (.NET). Supported Frameworks: GLFW, OpenTK, SharpDX, SlimDX, XNA and MonoGame.

Jump N Roll Windows Phone 7

Jump n Roll is a remake of the classic amiga game for windows phone 7, using vb.net and XNA. Version 1 is in a working but unfinished state.

Portable Xna Components

Portable Xna Components makes it easier and faster for Xna game developers to create their games. Developers using this library don't have to worry about rudimentary tasks like drawing and collision detection. It is written in C#

milworms

Milworms is a game for Windows Phone 7.

Outliers

•    CSharp

Outliers is a 2D side-scrolling (C#) XNA game written for Windows Phone 7.

3D World Studio Content Pipeline for Windows Phone 7

This is a port of PhotonicGames' project: http://xna3dws.codeplex.com/releases/view/42994 for the Windows Phone 7 tools (XNA 4.0 CTP).

Windows Phone 7 database

This project implements a Isolated Storage (IsolatedStorage) based database for Windows Phone 7. The database consists of table object, each one supporting any number of columns. Use this as persistance engine for WIndows Phone 7 Silverlight (and XNA) applications.

Windows Phone Cocos 2D like Game Engine

This project seeks to make an engine for XNA Game Development for Windows Phone, similar to the popular Cocos2D http://www.cocos2d-iphone.org.

tIDE (Tilemap Integrated Development Environment)

•    CSharp

tIDE is a fully featured tile map editor for 2D platform games, RPGs etc. xTile is an XNA-based tile rendering engine for Windows, Xbox 360 and Windows Phone 7. Features supported include: parallax WYSIWYG layer editing, tile animation and auto tiles.

iPhone application for Windows Phone 7

WP7iPhone is a Windows Phone 7 C# Silverlight app that mimics the famous iPhone interface. It's completely useless, my main goal here was to teach myself more about Silverlight layout, animations, binding, etc.

Helium

The Helium XNA game engine is a light portable game engine designed to work on many platforms and soon to be expanded on more. Currently the helium game engine can be easily run on Windows, Xbox, and Windows Phone and with a coming port to the iPhone and SilverLight.

XNArkanoid

•    DotNet

XNArkanoid is a Windows Phone 7 remake of the classic Taito´s Arkanoid. It´s developed in C#, using XNA Framework v4.0.

AdRotator v2

A highly customizable ad rotator component for Windows Phone and Windows 8 platforms, to be used with Silverlight, XNA and Monogame.

XNA Electric Effect

An electric effect implemented using XNA 4 fro Windows Phone 7. It provides an easy way to configure settings to create realistic electric effects, lightening effects, etc.

Windows Phone Tic Tac Toe

"Tic Tac Toe" ("Noughts and Crosses") game created by EugeneDotnet for Windows Phone. You can find a tutorial at www.eugenedotnet.com in Windows Phone 7 Lessons section.

VanGuide for Windows Phone 7

VanGuide for Windows Phone 7 is an extension for VanGuide app http://vanguide.cloudapp.net based on the Open Data Application Framework (ODAF) http://odaf.codeplex.com/. It mashes up landmark data feeds with user comments, ratings, tagging via Web client, iPhone & Windows Phone 7

Simon Squared

Simon Squared is a Multi-player Puzzle game for Windows Phone 7. It uses the XNA framework on the Phone, and the WCF Http CTP on the server side to handle communication between phones. It's written in C#.

Simple Storage for Windows Phone and XNA

Simple Storage is a lightweight, extensible and object-oriented storage engine designed for Windows Phone 7 & XNA 4.

Axiom 3D Engine

•    CSharp

Open-source, cross-platform 3D rendering engine for .NET and Mono. The Axiom Engine is a high-performance C# port of the powerful OGRE engine and provides full support for DirectX, OpenGL and XNA on Windows, Linux, Android, iPhone and Windows Phone.