Twine - Twine is an open-source tool for telling interactive, nonlinear stories.

Attention Insight - Maximize advertising campaign results and design performance with pre-launch analytics.

Ink by Inkle - ink is a popular open source scripting language for branching stories, designed for writers

Insights by Autopilot - Goal tracking and marketing analytics for customer journeys

Quest - Quest lets you create sophisticated text-based games, without having to program.

Reveal - Facebook Ads automation & cross-platform analytics reports