In 1979 he and Reinhold Messner climbed the K2 in record time and without oxygen equipment. A primary school in Khadambas, a village 80 km east of Kathmandu in Nepal, has been named after him. Europe
1950 Geiselstein in the Ammer Mountains
1951 Geiselstein south face, south cut, east cut, first five day tour
1952 Fleischbank, southeast face, Bauernpredigtstuhl-Alte Westwand
1953 Fleischbank-Südostverschneidung, Mauk, west face (Buhlroute), Schüsselkarspitze, southeast face, Große Zinne-Norwand (Comici)
1954 Predigtstuhl – direct west face (4th ascent) Große Zinne, north face (Comici), 4th solo ascent
1955 Torre di Valgrande, northwest face (Carlessoführe), many solo tours in local Ammer Mountains
1956/57 first West Alpine journey, Westliche Zinne, north face (Cassin)
1959 Piz Badile, northeast face
1960 Rotwand, southwest face (Brandler-Hasse)
1961 Große Zinne, direct north face
1962 Grandes Jorasses-Walkerpfeiler, first ice tour
1963 Ortler, north face (Schmid)
1964 Matterhorn, north face
1965/68 Oberreintaldom-Gondaverschneidung und Schießlerführe, Berggeisttum-Cukrowskiführe, Montblanc-Brenvaflanke, Blatière, west face (Brown), Sass-Maor, east face (Solleder), Piz de Ciavàzes-south face (Schubert)
1969 Eiger, north face (Heckmair), Mont Maudit southeast arête
1971/72 Trollryggen, northeast face (Norway)
1974 Cengalo, northwest pillar
1976 Rotwand, southwest face (Eisenstecken)
1978 Triolet, north face, Grubenkarspitze, west face (Klaus Werner Führe) Karwendel
Asia
1975 Yalung Kang (8,438 m) (Kangchenjunga West Peak), 2nd ascent
1977 Lhotse (8,516 m) im Khumbu Himalayas, without oxygen masks
1979 K2 (8,611 m) im Karakoram with Reinhold Messner.
Dacher was the first German on the K2
1980 Shisha Pangma (8,046 m) in Tibet
1981 Nanga Parbat (8,125 m) in Pakistan
1982 Hidden Peak (8,080 m), first ascent of a variation in the north face
1983 Cho Oyu (8,188 m) from the southwest in Alpine style
1984 Manaslu (8,163 m)
1985 Dhaulagiri (8,167 m), failed owing to sickness of a colleague
1986 Broad Peak (8,047 m)
1987 Everest (8,848 m), failed owing to storms
1987 Gasherbrum II (8,035 m)
1988 Makalu (8,485 m) failed owing to hurricane winds
1990 Dhaulagiri (8,167 m) international expedition, failed
1991 Everest (8,848 m) attempt
1993 Mustagh Ata (7,546 m) climbed with skis
1993 Everest (8,848 m), expedition attempt
South America
1992 Aconcagua (6,962 m), Dacher is expedition leader
Greenland
1970 Greenland, inland ice crossing from west to east (Nansen route) with Franz Martin.