This paper discusses a new reduced model for vapor cloud explosions (VCEs) which incorporates some factors found in more complex models such as three-dimensional effects. The common foundation of all VCE analysis models is discussed and a simplified model based on a set of blast curves is reviewed to highlight the differences in the various model assumptions. Output from the reduced model is compared to experimental data and results from the simplified model. It is shown that the reduced model captures critical factors such as cloud shape and flame dynamics,