If you have a basement that is always or sometimes below the groundwater table, you will get water in the basement at some point.
You can minimize the occurances and the consequences, but it will happen.
Good ideas above for minimizing the occurances.
Also think about things like Dricore subfloor if it's only a specific area or a weeping flow at worst.
If your basement has the potential to flood deeply, maybe rethink the finished basement gameroom.