01
Required credit
Idle Astonia is based on the Astonia 3 engine by Daniel Brockhaus .
The original game, engine, client, graphics, and sounds are the work of their respective creators and rights holders. Idle Astonia does not claim ownership of that original material.
Primary references: the official Astonia 3 page and the official client source.
02
Astonia materials
The game uses a deliberately curated subset of Astonia 3 graphics and sound effects distributed from the official Astonia 3 page. The subset includes interface pieces, equipment, potions, orb material, Cameron scenery, character animation frames, and selected ambient and action sounds.
Most curated files are preserved byte-for-byte. Four legacy PNG files required a browser compatibility change: pure magenta chroma-key pixels were made transparent. Player color-mask frames are recolored at runtime with the original client algorithm. No blanket relicense or authorship claim is made for the source archives.
Review the detailed asset notice and the per-file provenance manifest.
Daniel Brockhaus’s official page describes the current use and credit terms. For revenue-generating projects, it asks for 10% of revenue to be donated to a charity of the project’s choice. Projects earning more than US$100,000 per year from Astonia are asked to contact Daniel Brockhaus to discuss a commercial license. Read the exact terms at the official source; this summary is not legal advice and does not replace them.
03
The 2019 prototype archive
“Where We Began” preserves the original Idle Astonia alpha reel and background from the project’s 2019 “Coming Soon” homepage. They are presented as historical Idle Astonia material and kept visually separate from Astonia 3 source assets.
View the preserved chapter04
Game progress & privacy
The game assigns this browser a random session identifier in a secure cookie. That identifier is used to load and save game progress; it is not a player name, email address, or social profile. Clearing the cookie may make the saved company inaccessible from that browser.
Idle Astonia does not ask for a social login on this release. Ordinary hosting security and request logs may still be processed to operate and protect the service.
Last updated July 31, 2026.