So you want a Lost adventure game made by LucasArts alumni eh? Sadly this isn't an actual game, but marvel at some enterprising young soul's gallery of pictures that imagines 'If LucasArts makes a Lost game in 1987'.
My favourite's Locke trying to open the hatch and commenting 'that doesn't seem to open'. After that point I don't get any of them.
Source: Kotaku
http://www.fusionevents.net.au/discovery.jpg