I had a Commodore 64, had many games, tools, a "power cartdridge" (to freeze software and go modify stuff in memory, like the number of lives or gold in a game), demos, etc. and it was my life for years and years.
And yet the C64 never ceases to amaze me: I had not heard about Mercenary and it's amazing what was possible with so little memory/resources.
(signing off, going to lament at the size of JavaScript loaded by the next site)