Crashlander is a fixup by Larry Niven published in 1994, set in his Known Space universe. It brings together the short stories featuring the We Made It space pilot Beowulf Shaeffer — Neutron Star (1966, Hugo Award winner, 1967), At the Core (1966), Flatlander (1967), Grendel (1968), The Borderland of Sol (1975, Hugo Award winner, 1976), and Procrustes (1993) — and lightly links and extends them with Ghost.