Installing a shower over a basement drain is relatively a simple project.
Install shower over floor drain.
If the subfloor is wood waterproof it before using self leveler and before spreading mortar or adhesive.
Fix an uneven floor using a self leveler.
It is a project that yields a pretty good return on investment when you consider all the other projects you may look to complete for home remodeling.
Otherwise you have to break through the concrete to run a new line for a shower stall installation.
The most efficient and least expensive method of installing a basement shower without the need to break concrete is to install it over existing plumbing stub outs.
It is a great remodeling project and can help to add long term value to your home.
This guide explains how to install a shower pan over existing plumbing.
This limits your ability to change the basement layout but if the stub outs are in place using them will save money and labor.
Ideally you ll already have a drain roughed in with the pipe sticking a few inches above the floor.