Hey Nirnak! Nice to see you here!
As it stands, a percentage-complete list would look far more disappointing than you'd expect, and it's not something we're quite willing to release just yet. The reason for this is that, at the moment, the game is stripped down to the bare bones so we can make sure the engine is running smoothly and properly. We
do have many of the gameplay elements worked out, though, and the code for it is all saved away safely. When it comes time to re-implement them, development will advance
very rapidly.
As an example of why we're a against putting out a "percentage complete" number or graph just yet, imagine that LT's development checklist contains 100 items total (a nice round number to make this simpler. You could say, at this point, that the game is 1% complete, as "Engine" would surely take up a single checkmark. That's four years for 1%! Using those kind of flawed statistics, you could assume the entire game would take
400 years to complete, which is of course ludicrous enough that nobody would consider that a believable estimate. When the engine is done, we'd fly through the rest at anywhere from 10 to 50% a month, which would seem strange given how long it took to get to 1% on our little imaginary graph. As such, even something like a simple "percentage complete" number would mean very little and be rather misleading.
If you follow along with the updates, though, you'll be quite well able to see where the project currently stands - and of course we're here to answer any questions you might have as well, to the best of our ability.