Things we've built. Most of them are free.

Apps, games, and small tools shipped by The Klaus Project, LLC. 9 free downloads and 3 paid utilities — most run on the same self-hosted AI infrastructure we use internally. See the labs page for the systems behind the products.

Free · MIT Multi

Forge — AI Coding Agent Platform

Local-first AI coding agent. VS Code, CLI, Windows, Unity Editor — all powered by your own LLM.

AIDeveloper ToolsOpen SourceSelf-hosted
Free Android

Deraku's Mirror — D&D AI Assistant

A D&D assistant that thinks at the table — not a dice-roll toy.

AID&DTTRPGAndroid
Free Android

Derakus Language Tutor

Voice-driven language practice — talk to it like you'd talk to a friend.

AILanguageEducationAndroid
Free Windows

Biscuits

A free Windows D&D assistant for players and DMs.

D&DTTRPGWindowsTools
$0.99 Android

Industrial Information & Conversions

Quick reference for field workers and engineers.

IndustrialEngineeringAndroidTools
$0.99 Android

Frequency Explorer

Hands-on tool for exploring audio frequencies.

AudioToolsAndroid
Free Windows

Deraku's Legends — Windows Client

A free Windows client for the Deraku's Legends Tibia OT server.

GameMMORPGWindowsTibia
Free Android

Deraku's Legends — Android Client

A mobile-friendly Tibia OT client for Android.

GameMMORPGAndroidTibia
Free Android

Brunow's Mechanical Companion

A field-mechanic's notebook for Cushman & Wakefield techs.

MechanicsToolsAndroid
Free Android

Klaus — Code Learning Assistant

A chat-first programming tutor that remembers what you study.

AICodingEducationAndroid
Free Android

Deraku's Arcade V2

Active development build of the Arcade. Mostly stable.

GameAndroid
$0.99 Android

Elyntis's Cooking Companion

What's for dinner? Smart, ingredient-driven meal planning.

ToolsRecipesAndroid
Free Android

Honey Do List

Schedule shared tasks with your partner. Never forget the trash again.

ProductivityAndroidTools