Sudoku Defense

Sudoku tower defense

Sudoku Defense is a PC puzzle and tower defense game. You fill empty Sudoku squares with numbers, and each correct placement grows a tower and earns credits. Then you start an enemy wave and watch the board become a voxel battlefield. Your recent placements also shape the enemies’ route.

Towers and modules

Each tower has five module slots. Equip effects such as lightning, frost, splash damage, or faster shots, and swap or upgrade modules as you build. You can upgrade every tower with the same number at once; number highlights show which towers will be affected. Enemies drop fragments and sometimes chests. Spend fragments to open chests for modules, or save a temporary boost for a difficult wave.