A new formula has been found! This page is out of date. GO HERE
In Mousehunt, everyone wants to know what the best trap to use in their situation. Ask on the forums and you are bound to get a variety of conflicting advice. How can you decide who is correct? How do we properly evaluate the relative strengths of traps? We need to have an estimate for the catch rate of a mouse based on trap properties.
The catch rate of a mouse is dependent on Trap Power (T), Trap Effectiveness (Eff), Luck, and Mouse Power (M). For most locations, this catch rate appears to follow this formula.
Using this equation, we can visualize the effect of Trap Power, Effectiveness and Luck for a bunch of different mouse powers.
In the following plots, Trap Power is on the x-axis, and Catch Rate is on the y-axis. The colors indicate the total Luck of the trap (including base and lucky golden shield), increasing from 0 (blue) to 45 (red). Each panel indicates an effectiveness rating which is dependent on mouse and trap class (Shadow, Physical, Tactical, etc). Normal effectiveness is 100%. The curves show the estimated catch rate for a given Trap Power, Mouse Power, Luck and Effectiveness.
The first panel is for a mouse power of 100, this is around the power of a Wiggler mouse, stronger than a White or Brown mouse, and weaker than a Dwarf.
The second panel is for mouse power of 300, around the power of a Mutated White, a bit stronger than a Dwarf, and weaker than a Steel mouse.
The third panel is for mouse power of 1000, around the power of a Diamond, a bit stronger than a Bionic, and weaker than a Elven Princess mouse.
The fourth panel is for mouse power of 3000, around the power of a Wordsmith, a bit stronger than a Zombie, and weaker than a Keeper’s Assistant mouse.
The fifth panel is for mouse power of 10000, around the power of a Renegade, a bit stronger than a Furoma Student, and weaker than a Furoma Master mouse.
This equation was not discovered by me, I just made the pretty plots. For much more info on mouse powers, the development of this equation, and even some places where it seems to be a bit off, check out the links on the MouseHunt Data 3.1 spreadsheet.
Below is a table of mouse powers I compiled from data from Paul H, Geoff O and probably others. Click for high res.
If you would like to play around with the code used to generate these plots, a Matlab m-file is below