Pathless Maze TD

"Pathless Maze" is a maze-type tower defense game. In the combat map, you can build defense towers anywhere except on the monsters' designated path nodes. Monsters will follow the shortest path through these nodes until they escape at the endpoint. Defense towers not only attack monsters but also act as obstacles to alter their path, creating a dynamic maze.
Tower Construction
Before monsters invade, you can select empty spaces to build defense towers. Each construction attempt randomly generates an unlocked tower type, and the number of towers you can build per round varies by game mode. For example:
When you reach the round's build limit, select one tower to keep, while the rest turn into obstacles.
Monsters will then begin their invasion, and combat starts...
Tower Synthesis
During construction, you might luckily encounter combinable towers in a single round:

Quickly select one tower to synthesize! The chosen tower becomes a synthesized tower, while the others turn into obstacles. Synthesized towers far surpass basic towers in damage and mechanics.
If luck isn’t on your side, you can still synthesize towers over multiple rounds by preserving specific ones:

Always prioritize synthesis formulas when deciding which towers to retain each round!