Spectral Tower is the first game in the RPG series released by Idea Factory for the Playstation One console, the game begins with an intro in which the adventurer arrive to a big tower that is located in an isolated desert.

The gameplay is in third person perspective using an overview view meanwhile the player is exploring the different floors of each tower, and in a first person perpective for the battle parts.

There are 3 towers:
- Goblin Tower: 10 floors to explore
- Robber Tower: 20 floors to explore
- Queenrose Tower: 100 floors to explore

In the game the player takes the role of an adventurer that go to explore the 3 towers that are in the Kingdom to obtain their treasures, to advance to the next floor of each tower the player have to find the floor's key and in each floor there are enemies and different traps to make things a lot more difficult.

The battle parts are done using a curious system since they are turn based like in most RPG are, but to make a movement the player have to roll a dice and the strength of the attack will depend of the number of the dice.