This tool aids Pokmon Platinum players in predicting the locations where Feebas, a notoriously rare Pokmon, can be found. Feebas only appears on six specific tiles within Mt. Coronet’s foggy interior lake. These tiles are randomly determined when the game is started or when the Mystery Gift function is used. A Feebas locator utilizes the player’s Trainer ID and Secret ID (SID) to reverse-engineer the game’s pseudo-random number generator (PRNG) and pinpoint those specific tile locations. For instance, with a Trainer ID of 12345 and a Secret ID of 67890, the program can calculate and display the coordinates of the six tiles where Feebas is programmed to appear.
The development of these calculators stems from the frustration many players experienced trying to catch Feebas through traditional methods. The sheer randomness of Feebas spawns made it an incredibly time-consuming endeavor. These calculators offer a significant advantage by drastically reducing the search area, making the process of acquiring Feebas substantially more efficient. Historically, information regarding PRNG manipulation in Pokmon games was often shared within niche online communities, eventually leading to the creation of user-friendly tools like this one, democratizing access to this complex data.