Open source. Open possibilities.

Open-source desktop AI companion app with Live2D/VRM avatars, voice chat, local LLM support, tabletop RPG engine, and autonomous desktop agent capabilities. Runs 100% locally by default.

Otaku is a free, local LLM frontend for roleplay, offering web and terminal interfaces. It supports local and cloud LLMs, manages long context via scene summaries, and imports SillyTavern chats and character cards.

Liyuan is a role-playing application centered on AI Agent, optimizing memory via the harness layer and introducing decision cards that let users drive the plot, supporting save branches, custom knowledge and material libraries, and compatibility with mainstream character cards and world book formats.

WorldLines is a multi-agent simulation engine for AI role-play, where a world-agent orchestrates independent soul-agents—each with private memory, mind, and agenda—in a file-backed, event-sourced living world.