At Harvard Business School's Publishing group we've been a longtime fan of custom business simulations, and took thet custom development approach when we designed the platform and portfolio of our own business simulation games. It's nice to see that the idea of creating custom simulations has only gained prominence in both academic and corporate settings. BTS, a creator of experiential learning solutions for strategy implementation including custom business simulations, recently released a whitepaper called "Navigating Strategy Execution: The Case for Custom Business Simulations" (see their whitepaper page to download). It's a great overview of the benefits that custom simulations can provide in corporate environments but also includes some great universal truths about the impact of this type of approach on learning. We're heard great things about BTS and their approach and a few years back I had interviewed Executive VP Rommin Adl as part of an interview series on business simulations. Check out the white paper - it's a great, short read and a nice synopsis of this great approach to experiential learning.