Sim Space Elevator is a simulation environment (aka video game) where the user builds their own Space Elevator. It could be along the same lines and in the same vein as games like Outpost, Sim City, and Space Station Manager. The purpose of the sim would be to generate interest in Space Elevator technology and of coarse at the same time be fun.
The user would receive X amount of money to research the technologies required to build a Space Elevator. The user would allocate their research funds towards different fields such as rocketry, nano technology, military, and others. Once a sufficient level of research was achieved the user would be in charge of selecting a site to build the Space Elevator and then actually building the elevator out of modules. Other elements like protecting the elevator from attack, union strikes, accidents, and other events while it was being built could be included.
Earth could be the original building location for the space elevator but other locations like Luna, Mars, or asteroids could be included at more advanced levels.