Imprint

Deutsche Version — the German version is legally authoritative.

Disclosure pursuant to § 25 MedienG and § 5 ECG (Austria)

Media owner and publisher:

Raffael Hickisch
Goldschlagstraße 23/18
1150 Vienna
Austria

Contact:
E-mail:

Reporting content & point of contact (DSA)

Siedler Österreich is a small non-commercial service without a moderation team. Protection is therefore automated: chat messages are filtered before publication (insults, hate, sexual content, contact details, grooming patterns), reported messages are hidden immediately, and players receiving several independent reports are muted automatically. Every report notifies the operator.

Single point of contact under Art. 11 and 12 DSA for authorities and users – for notices of illegal content, child-safety concerns and complaints against automated measures (Art. 20 DSA):
E-mail:
Languages: German, English. In-game reporting: ⚑ icon next to every chat message.

Purpose

Siedler Österreich is a non-commercial browser game in alpha stage. It serves the playful exploration of public Austrian cadastre data, raises awareness for nature conservation and biodiversity, and demonstrates data processing methods.

Source code

The source code of this project is openly available on GitHub.

Data sources and licences

The map display is based on open data. Every source is fetched server-side; the browser never talks to the data providers. Cadastre (parcels, building footprints, land-use areas): © BEV – Federal Office of Metrology and Surveying, cadastral map as vector tiles from kataster.bev.gv.at, licensed CC BY 4.0. Mandatory notice: “© BEV, 2026 – Datenquelle: Bundesamt für Eich- und Vermessungswesen, Kataster (CC BY 4.0), bearbeitet”.

Legal basis: product description “Katastralmappe VTC” (BEV_S_KA_Katastralmappe_VTC.pdf) section 2.3 Licence: “The standard licence Creative Commons CC BY 4.0 applies to the products described here” – the tileset https://kataster.bev.gv.at/at.gv.bev.kataster/tiles/{kataster|symbole}/{z}/{x}/{y}.pbf is that product. CC BY 4.0 section 4 explicitly grants the sui generis database right (§§ 76c–76e Austrian Copyright Act) as well. We use neither the paid DKM (BEV terms of use, Amtsblatt 3/2022) nor the Katasterservice (search / information API). The tiles are assembled into parcels by a service of our own whose source code is open (MIT): github.com/raffopenssh/vtcseamless (preset bevdirect, version v0.3.6). That service holds the fetched BEV tiles only transiently in memory (never written to disk), for at most 24 h; assembled grid cells as well as parcel and folio look-ups are likewise held by the game in memory only (at most 24 h, never in the database or on disk); a restart clears them. Parcels and folios (EZ) can only be found inside a visible map extent, never without a location; the tiles contain no owner data. BEV note: no legally binding coordinates can be derived from the tiles – the game is not an official register extract. Every rendering carries the notice “© BEV, 2026 … CC BY 4.0, bearbeitet”.

Further sources: BEV administrative boundaries (VGD), BEV ALS DTM/DSM 1 m & orthophoto (CC BY 4.0, modified), Copernicus Sentinel 2022–2025 (EU/ESA), ESA WorldCover 2021, Statistics Austria, EEA Natura 2000, WDPA (UNEP-WCMC & IUCN, non-commercial), European Red List (IUCN/EEA), OpenStreetMap (ODbL), BEV DLM geographic names (as of 2025-03-25), RIS, AMA INVEKOS, Hansen/GFW GFC 2000–2024 v1.12, BML eHYD, MERIT Hydro, geoBoundaries. Landscape and the observed layer (NE cells) come from the independent service srtm-lidar-at (its own segmentation, statistics and cell layer: CC BY 4.0, licence per source; the comparison with declared land use rests on BEV cadastre statistics per cell without object geometry), the surroundings of a point from umfeld-at (licence per source). Both services are in alpha and are not operated or endorsed by the original data providers.

Contribution to land-use monitoring We also give something back to umfeld-at: the cadastre cells we assemble anyway for players (daily prewarm plan, on game start or on demand) are recomputed every night, for a rotation of cadastral municipalities, into per-cell land-use statistics (NE cells) with umfeld-at's open reference procedure. As observer siedler-oesterreich we report only digests per cell block, cell counts and the epoch – no geometry, no parcel numbers, no personal data. This lets umfeld-at detect where the cadastre changed between two epochs. Procedure and format: docs/ne-report.md.

Every source with fetch location, licence, attribution, our modifications and maximum cache age: Data sources & licences (machine-readable: /api/licenses).

The in-game display is simplified and playfully altered; it is not an official statement and has no legal effect. No owner data is processed. This game is not operated or endorsed by BEV, Statistics Austria, the EEA, ESA/Copernicus, UNEP-WCMC, the Federal Chancellery or OSM.

Disclaimer

The contents of this website were created with the greatest possible care. However, no guarantee can be given for the correctness, completeness and timeliness of the contents. Use is at your own risk. In particular, the parcel, ownership and price information shown in the game does not represent real legal circumstances.

We accept no liability for the content of external links. The operators of linked pages are solely responsible for their content.

Copyright

The content and works created by the site operator on these pages are subject to Austrian copyright law. The source code is available via the repository linked above. Open data used is subject to the licence terms of the respective data providers. Fonts "Press Start 2P" (CodeMan38) and "VT323" (Peter Hull) under the SIL Open Font License 1.1. All graphics are drawn procedurally; no third-party assets are used.