Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.
Twine - Twine is an open-source tool for telling interactive, nonlinear stories.
Noizio - Feeling that the noise of the big city is too much for you to bear?
RenPy - Ren'Py is a free and cross-platform visual novel engine that helps you use words, pictures, and...
zenmix.io - Ambient background sound generator
Quest - Quest lets you create sophisticated text-based games, without having to program.