Digger!
1.2.3.4.5.6.7.1, how familiar music!
From 87 to 92 years, in the next 5 years, this little game is not known to how many black days white night.
Finally, there is a chance to relive it.
http://www.digger.org/download.html
There are multiple versions such as DOS / Windows / UNIX / Java and the source code for each version.
