swissALTI3D (opens in a new tab)
Federal Office of Topography swisstopo
Cost Free Licence Open- DTM
National open LiDAR Openly licensed LiDAR covers about 70% or more of the land area.
Liechtenstein is covered by swisstopo's national products: swissALTI3D (0.5 m DTM) and the swissSURFACE3D LiDAR point cloud both explicitly include the Principality of Liechtenstein and are free under the opendata.swiss terms of use.
Free is not the same as open. Cost is what you pay to get the data; the licence says what you may do with it. How cost and licence are defined
Federal Office of Topography swisstopo
Cost Free Licence OpenFederal Office of Topography swisstopo
Cost Free Licence OpenFederal Office of Topography swisstopo
Cost Free Licence Open