1) Attended without invitation 2) Came uninvited 3) Caught some shut-eye 4) Collided 5) Entered uninvited 6) Failed suddenly 7) Intruded on a party 8) Needed rebooting 9) Surprised at the party 10) Went bankrupt 11) Went down, PC style Found on https://www.crosswordclues.com/clue/crashed