This is quite possible one of the coolest things I’ve seen in a while… Cary Walkin created a full blown RPG on a spread sheet! That’s pretty damn amazing!
I remember one time getting caught playing a flash version of Sonic on a spreadsheet while at work, but this takes it to another level entirely! I mean…there are achievements! Well over 2,000 random enemies, over 1,000 item combinations and so much more!
Best of all, this is playable on Excel 2007!
For more info: http://carywalkin.wordpress.com/download-arena-xlsm/
For those wanting something a bit more updated, there are two games made specifically from the Excel team that work only on Excel 2010; Missle Command, and Tower Defense.