It’s the only high score I’m likely to make, so I feel compelled to make note of it.
From the 2008 January 31 results, the longest single simulation
ran for 32.99 days
. The nominal length of the simulation was one week. The computer that achieved this milestone was a ten-year-old Power Macintosh 7300 “Montana” with the 180-MHz PowerPC 604e CPU.