Haven’t tried Castlevania II, but here’s the first one: https://antithesis.com/blog/castlevania/

This seems like a cool company and I don't want to nitpick too much, but gamers have no respect for history:

  Castlevania... [so] called because it is a Metroidvania game set in a Castle.

Ouch - this is precisely backwards. Metroidvanias are named after Metroid and Castlevania because those series practically defined the genre.

Also a bit frustrating because the first Castlevania itself isn't actually a metroidvania, it's a more conventional action-platformer. Castlevania II has non-linear exploration, lots of items to collect, and puzzle-solving, all like Metroid. So it's not too surprising Antithesis had to do a lot of work for adapting their system to Metroid - but I wonder if this work means it now can handle Castlevania II without much extra development.

You were successfully trolled. :-)

This is correct. Also, Metroid is called Metroid because it is a Metroidvania set not in Romania, but on an alien world.

Yeah the company sounds interesting. I wish the main page had clearer info about what it does. There’s a lot of text but I want the simple, “here’s the little bit of example code to get going.”

After a little more digging I found some very cool answers in the docs: https://antithesis.com/docs/

I assume they are intentionally not very vocal, probably still maturing/scaling their platform. Until recently they were a stealth startup. The stuff they are doing is truly revolutionary.

> I would love to see how it handles Castlevania II.

I assume you're thinking specifically of using the red crystal to spawn a tornado: https://youtu.be/Mx9PwRIK9Io