I remember this toy train game very well. I remember spending hours and hours trying to overcome the levels from the middle level onwards, having to take the cargo to the most diverse places, and the final levels that we only released after completing all the other levels of the same difficulty group. In fact, remembering now, one of the most difficult in any difficulty was "Crossing the Street", where we had to cross several tracks with other independent trains and get to the other side without hitting any or making the other trains crash. Please bring GOG.