Off the Map

Credits

Off the Map is built from open data about real places, and from the work of many people. Thank you.

Made by

Off the Map

A game by Triplemind GmbH

© 2026 Triplemind GmbH

Christoph Gaffga

Design and development, Triplemind GmbH

The world's data

Each world is rebuilt from open data about the real place.

Copernicus DEM GLO-30

The terrain: the Copernicus 30 m elevation model of São Tomé (tile N00 E006), reshaped for the game and corrected with NASA's GEDI lidar.

produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved

The organisations in charge of the Copernicus programme by law or by delegation do not incur any liability for any use of the Copernicus WorldDEM-30

Licence: Licence for the use of the Copernicus WorldDEM-30
Source: registry.opendata.aws

OpenStreetMap

Trails, streams, cliffs, waterfalls and peaks that shape the terrain and the paths.

© OpenStreetMap contributors

Contains information from OpenStreetMap, which is made available here under the Open Database License (ODbL): openstreetmap.org/copyright

The OpenStreetMap-derived data in Off the Map is available under the ODbL on request: info@playotm.com.

Licence: Open Database License (ODbL) 1.0

High Resolution Canopy Height Maps (Meta and WRI)

The forest's height and its gaps, from a 1 m satellite canopy-height map.

High Resolution Canopy Height Maps by WRI and Meta. Meta and World Resources Institute (WRI) - 2024. High Resolution Canopy Height Maps (CHM). Source imagery for CHM © 2016 Maxar. CC BY 4.0.

Adapted: Resampled to the game's grid, holes filled from ETH's map, and turned into the forest's top height and gaps.
Tolan, J. et al. (2024). Very high resolution canopy height maps from RGB imagery using self-supervised vision transformer and convolutional decoder trained on aerial lidar. Remote Sensing of Environment 300, 113888.
Licence: CC BY 4.0
Source: registry.opendata.aws

ETH Global Canopy Height 2020

A second canopy-height map, where Meta's has no data.

ETH Global Canopy Height 2020, Lang, Jetz, Schindler & Wegner (2023), CC BY 4.0.

Adapted: Resampled and scaled to fill the gaps in Meta's map.
Lang, N., Jetz, W., Schindler, K., & Wegner, J. D. (2023). A high-resolution canopy height model of the Earth. Nature Ecology & Evolution. Dataset: doi:10.3929/ethz-b-000609802.
Licence: CC BY 4.0
Source: langnico.github.io

ESA WorldCover 2021

Where the forest is: land cover at 10 m.

© ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium

Adapted: Resampled to the game's grid; its tree cover masks the canopy maps.
Zanaga, D. et al. (2022). ESA WorldCover 10 m 2021 v200. doi:10.5281/zenodo.7254221.
Licence: CC BY 4.0
Source: esa-worldcover.org

NASA GEDI lidar

Lidar shots from the International Space Station: they correct the terrain where the elevation model is poor and check the forest's height.

GEDI L2A Elevation and Height Metrics, Version 2 (Dubayah et al. 2021), NASA EOSDIS Land Processes DAAC.

Dubayah, R., Hofton, M., Blair, J., Armston, J., Tang, H., Luthcke, S. (2021). GEDI L2A Elevation and Height Metrics Data Global Footprint Level V002. NASA EOSDIS Land Processes DAAC. doi:10.5067/GEDI/GEDI02_A.002.
Licence: NASA data: no copyright (public domain); citation requested
Source: doi.org

gediDB

The public database the GEDI shots were read from.

GEDI shots accessed through gediDB (Besnard, Dombrowski & Holcomb, GFZ Potsdam).

Source: doi.org

DB-IP IP to City Lite

Our server turns a game's internet address into its country and region for the game statistics, then discards the address.

IP Geolocation by DB-IP

Adapted: reduced to country and region ranges.
Licence: Creative Commons Attribution 4.0 International
Source: db-ip.com

Scans, fonts and sound

Quixel Megascans

The ground and rock surfaces: Dry Fallen Leaves, Moist Fallen Leaves, Forest Floor, Tileable Moss Patches, Military Trenches Ground Dirt Rough 01, Military Trenches Ground Mud and Rock Cliff, regraded to a wet volcanic island.

Ground and rock scans from Quixel Megascans.

Licence: Fab Standard License
Source: fab.com

cliff rock

The structure of the shared basalt material: sharp vertical fractures and angular faces (the gorge walls and rock surfaces).

"cliff rock" by tosbin (https://www.fab.com/listings/5dd32d83-982d-4311-90d8-5456e66b7d6a), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: maps re-baked and recoloured.

Adapted: Maps re-baked and recoloured for the game's basalt material.
Licence: CC BY 4.0
Source: fab.com

Instrument Serif

The title font: the loading screen, the menus' titles, the website.

Instrument Serif, © 2022 The Instrument Serif Project Authors, SIL Open Font License 1.1.

Licence: SIL Open Font License 1.1
Source: github.com

Hanken Grotesk

The text font: the menus' items and rows, the website.

Hanken Grotesk, © 2021 The Hanken Grotesk Project Authors, SIL Open Font License 1.1.

Licence: SIL Open Font License 1.1
Source: github.com

ElevenLabs

Every sound in the game and the trailer: the forest, rain, drips, streams and footsteps, generated with ElevenLabs.

Sound: elevenlabs.io

Licence: ElevenLabs Terms of Service (free plan: non-commercial use, attribution asked)

Engine

Unreal Engine

The engine the game runs on (5.8, the launcher build), with its built-in content: sky, cloud texture, basic shapes, fonts, the first-person template.

Off the Map uses Unreal® Engine. Unreal® is a trademark or registered trademark of Epic Games, Inc. in the United States of America and elsewhere.

Unreal® Engine, Copyright 1998 – 2026, Epic Games, Inc. All rights reserved.

Licence: Unreal Engine End User License Agreement, section 2(a)
Source: unrealengine.com

Software in the game

The game's code includes open-source and third-party software, each under its own licence. The full licence texts are in the game, under Credits.

FreeType

Font rendering.

Portions of this software are copyright © 2025 The FreeType Project (https://freetype.org). All rights reserved.

Licence: FreeType License (FTL)

OpenSSL

Encrypted connections (the engine's HTTP and WebSockets).

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/)

This product includes cryptographic software written by Eric Young (eay@cryptsoft.com). This product includes software written by Tim Hudson (tjh@cryptsoft.com).

Licence: OpenSSL License and original SSLeay License

libjpeg-turbo

JPEG images.

This software is based in part on the work of the Independent JPEG Group.

Licence: IJG License, BSD 3-Clause, zlib

libwebsockets

WebSockets.

Off the Map is based in part on the work of the libwebsockets project (http://libwebsockets.org). Source code for the version used can be obtained at https://github.com/EpicGames/ThirdParty

Licence: LGPL 2.1 with the static-linking exception

Hex-tiling

The forest floor without visible repeats.

Hex-tiling after Morten S. Mikkelsen, "Practical Real-Time Hex-Tiling" (JCGT 11(3), 2022). Copyright (c) 2022 mmikk (Morten S. Mikkelsen), MIT License.

Licence: MIT
Source: github.com

Also included

With thanks

The plants and forests were researched from these sources; nothing of theirs is copied into the game.

Research sources

Species, elevations and descriptions behind the plants and the forest's rules.

Plant research drew on GBIF, iNaturalist observers, the IUCN Red List and the botanical literature of São Tomé and Príncipe.

As of September 2026.

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