I am not sure if anyone out there still enjoys playing Children of the Nile as I do but, just in case, I have posted an ALL NEW remake of RjG Floating Pyramid that I did many years ago. Please note that this scenario does require Alexandria to play it.
I have tested this scenario on many different computers and it seemed to play well on all. However, depending on your rig, as the game grows larger, I would not run the game speed any higher than 2.0.
There are some special effects in this scenario, for example, the Floating Pyramid in the sky and the underwater Limestone Quarry but let me assure you that no mods were used to create these effects. This scenario was created entirely using the editor that comes with the game and nothing more.