While we're talking games, kyrub has made a splendid patch called "insecticide" for Master of Magic. The game famous for its vision, imagination and creativity

While we're talking games, kyrub has made a splendid patch called "insecticide" for Master of Magic. The game famous for its vision, imagination and creativity but notorious for piles of bugs. The first few patches had several pages of bugfixes. Insecticide added many more pages, GUI improvements and AI tweaks. Some bugs went unnoticed until very recently. For example I was one of playtesters of this patch, and I reported that Invulnerability spell appears impossible to dispel. Kyrub checked it out, and... would you believe ? There was an off-by-one error, Invulnerability was the last on the list. It was literally impossible to dispel because of a programming error. Those old strategy guides recommending Guardian Spirit + Invulnerability rushes... they were so effective because they unknowingly exploited a bug!!