Not exactly a remake but a tribute to a very classic game called Wizard's Lair, released in 1985. This was a January 2013 entry for One Game A Month, but it was actually done in less than a week. It uses the bonus theme for January (‘portcullis’) and it’s a tribute to Stephen Crow’s magnificent ZX Spectrum game Wizard’s Lair. What I like about this tribute is it works in any browser, yes you can play it at work ;)