Apps similar to Arcweave include Drafft. It's paid, but Tuesday JS and TalkerMaker Deluxe are free. Other options are Celtx, articy:draft, Machinations and Dialogue Designer. In total there are nine Game Development Tools like Arcweave for Windows, Mac, Linux, the web and Android.
Drafft is a multi-platform, offline-first editor for interactive narrative systems and game design data. Design and structure dialogue trees, scripts, variables, quests, items, game design documents, and more.
Argentina
Tuesday is a free open source engine for creating visual novels, interactive stories and text-based adventure games. Written in JavaScript without using any third party libraries. There is support for the Apache Cordova framework for building native mobile and desktop...
Russia
Based on the Firefox engine, supports standards, visual storyboarding, production scheduling, publication & international languages MUI support. Free tutorials, videos & wiki are available from the site. There is a very helpful community too.
Canada
The first professional tool for story and game design
Create, organize and communicate your game vision. Compose every aspect of your game design in just one highly visual and versatile solution.
Develop interactive stories, deep and meaningful characters and item bibles coveri.
Germany
EU
Machinations is the browser-based platform to design, balance and simulate game systems. Machinations combines a standardized design language (UML) with the power-features you need to build complex systems.
Dialogue Designer is a powerful (but easy to use) branching dialogue editor designed for story-driven games like RPGs and Visual Novels. Create complex non-linear data structures in minutes, no programming experience required!
a tool for writing & testing nonlinear dialogue, especially for video games, and a full featured visual editor for managing game storylines.
United States
TalkTree allows you to create complex dialog trees for story- driven games, RPGs, and more. Using a simple, easy to understand flowchart- style design, the editor allows you to make every conversation in your game work detailed and fucntional.
