Attosecond laser pulses in the extreme ultraviolet (XUV) are a unique tool enabling the observation and control of electron dynamics in atoms, molecules, and solids. Most attosecond laser sources operate at a pulse repetition rate of 1 kHz (1,000 shots per second), which limits their usefulness in complex experiments. Using a high power laser system developed at MBI we have managed to generate attosecond pulses at 100 kHz repetition rate. This enables new types of experiments in attosecond science.