Unity

A simple pixel perfect camera with scaling options for 2D Games.

An importer for Tiled maps.

Crystal is a fast, scalable and extensible utility based AI framework for C# and Unity.

Virtual Reality framework that allows for powerful interactions, locomotion, and visual effects.

A 2D controller that behaves very similarly to Unity's CharacterController component.

An easy to use Unity 3D library for creating illustrated Interactive Fiction games.

An input manager that tames makes handler cross-platform. controller input easy.

Bind game inputs to methods via code or using the inspector to add event driven input handling to your project.

Makes it easy to recognize gestures and other touch input.

Makes handling complex gesture interactions on any touch surface much easier.

Build social and realtime games with an open-source distributed server.

An open source, lightweight tween library aimed at making tweening objects dead simple.

In-game debug console that displays output from Debug.Log.

Editor extension to bookmark and later recall scene views.

UniRx (Reactive Extensions for Unity) is a reimplementation of the .NET Reactive Extensions. Rx cures the "asynchronous blues" without async/await.

Collection of miscellaneous open source scripts and helpers for Unity 5.0.

Easily stream your Vimeo videos into Unity or record and publish out to Vimeo.

A complete puzzle game with a clever twist. Play it online.

Gems of Unity Labs for user education.