Kcheat, kcheat.sourceforge.net

With all the fun new games for Linux and Linux-like OS's these days, it's
about time there was an easy way to cheat at them!  Enter Kcheat, the
automatic cheating system.  With Kcheat you will be able to search for
values like health, score, gold, etc. in the games you play and change them
to whatever you want, even lock them so they stay constant.  Imagine
yourself running around Quake 3 Arena with 666 health or playing Heroes of
Might and Magic 3 with tens of thousands of troops!  No complex tools or
guru system knowledge required, just Kcheat and a will to bend the rules.