Hoarding disorder is a complex condition that has attracted little research attention, despite adversely affecting 2-5% of the population. We review the options and difficulties in the treatment of hoarding disorder using technology. We present a novel intervention design, delivered on tablets, that combines a Cognitive Bias Modification game with goal tracking functionality. We outline two experiments in progress: a lab study to measure the impact of our game on a non-hoarding population, and a probe study to determine the suitability of the intervention for participants with hoarding disorder.