I love this kind of game, and with the added bonus here of being the first one to discover a ton of stuff, it was very fun!
It was hard getting to 100 but I eventually did it with "end". Before that I managed to literally get "everything", but that was only worth 99 ;)
Having a scoreboard was a good idea, I wouldn't have pushed to make it to 100 if I didn't know it was the max (right?) and that someone else did it! I fear it might be full of 100 eventually tho.
Very nice overall, great job.