Paint of Persia is a rotoscoping pixel-art tool

Your free and open source sprite editor

A sprite rendering system for Blender ...

A simple and easy-to-use fx sounds generator

Sound effect generator

A Blender add-on for building tile based low-poly scenes with paint/map editor like tools

BJÖRTFX - A CRT-like retro screen effect utility / tech demo

All the tools you need to design, code, and play Pixel Vision 8 games.

Sid Player

generate sound from very small programs

Procedural pixel-art tile creator

Free, easy to use and flexible level editor.

Generate cool sound effects for your video game!

Standalone Tool for Pixel art Games , Customize and Export Sprite Sheets for pixel art Games.

a MIDI-controlled audio harmonizer

strum the sound spectrum to create strange sounds

Free game sound effects tool

A 2D Character Portrait Generator.

2D level editor for indies from an industry veteran

The livecoding environment