Actually I'm making a small application that shows similarly rated games. For fun tried out Brass: Lancastershire and got as most similar games: Brass: Birmingham, Age of Steam, Food Chain Magnate, Dominant Species

Top 3 for Eastfront: Advanced Squad Leader: Starter Kit #2, Unconditional Surrender! World War 2 in Europe and..... A Victory Lost: Crisis in Ukraine 1942-1943