"Tower placement" refers to the strategic positioning of towers in a particular area or game. It can be used to defend or protect something or to gain a tactical advantage over opponents. Full definition
All of this would be absolutely magnificent if not for the controls and tower placement system combining to make things frustrating. (appspy.com)
This is not the case here as tower placement is as easy as cycling between the available spaces on the map and then selecting which kind of tower. (gamersinbeta.com)
Custom maps like «X Tower Defense» cemented the familiar concepts of tower placement and enemy and tower variety to the genre. (snackbar-games.com)