variesper-file reviewCredit: Requiredverified 78d agoGo to source
NSF-backed portal for lidar point clouds and DEMs (US, global SRTM-class, country-wide 1 m sets). This is the access layer, not one license. Citations page: hosted data are "free of all copyright restrictions" and available for commercial use, and some datasets carry a named open license such as CC BY 4.0. You must cite the dataset. Read the landing page for the tile you actually pull. Do not treat the portal sentence as CC0 for every job.
[](https://tmhsdigital.github.io/Free-Game-Dev-Assets/entry/opentopography/)
HTML:
<a href="https://tmhsdigital.github.io/Free-Game-Dev-Assets/entry/opentopography/"><img src="https://tmhsdigital.github.io/Free-Game-Dev-Assets/badge/opentopography.svg" alt="Licence read by Free Game Dev Assets" /></a>
Follow licence changes (an Atom feed of changes to this licence, its commercial use, credit or status)
Account/API keys are normal. Point Elevation API exists; still inherits the source DEM's terms
Country-wide 1 m DEMs added in 2026 news are not automatically the same grant as USGS PD tiles. Open the dataset page
GIS first: reproject, downsample, then heightmap. Raw LAS is not a Godot terrain
Checklist: license policy in HTML, commercial allowed at portal level, citation required, not a marketplace, NSF/university, not blocklisted, no rights claimed, per-dataset licenses called out
Evidence
Live Citations (2026-08-24): "fully and freely available for both non-commercial and commercial uses"
Same page (2026-08-24): "Certain datasets may have open data licenses (e.g., Creative Common CC BY 4.0)"
Same page (2026-08-24): "you must cite the use of OpenTopography data"
