Carter Sande is just trolling us all at this point, I believe.
Last year, his game Let's Explore Geography! Canadian Commodities Trader Simulation Exercise was a tongue-in-cheek take on edutainment game. He spent a long time in the forums going back and forth on whether his game was actually edutainment or not, and it's still a little hard to tell.
This game has you clicking on a jpg island map to get help in different areas, in addition to taking small mini-tests of three questions at a time.
The tests are a bit hard (and I swear the compound interest one is wrong!). The little story segments between are more story-based and more clearly Interactive Fiction, but they honestly wouldn't be out of place in a real edutainment game.
The only place I found anything odd was (Spoiler - click to show)the very end, where there was no 'end game' link, and I scrolled down and found I 'missed something'. I noticed the replay this time was different, but not significantly so.
I then followed the walkthrough, the game went all (Spoiler - click to show)Zalgo, and the end result convinced me more than ever that Carter is trolling us all. I did reach a final The End after (Spoiler - click to show)destroying the obelisk.
Why 4 stars, not 5? Because, and this is written in my heart:
"Simulated Boredom is Still Boredom"
Otherwise, I had a good time.