So I put together a list of engines/development systems

This is now up on the IFWiki:

I had tried to put it in the thread first, but the table was way too large horizontally. There was just no way to fit it within the confines of the OP without making some major concessions.

If the mods wouldn’t mind, I would like to keep this thread here for potential future discussion.

This is a great thread. I had pinned it even before I knew you were coming back to update it! (I think it was also stickied on the previous board.)

I’m not sure if you’re keeping the list updated, but I noticed that the link for Aiee no longer works and Alan was updated (to v3.0 beta6) on 15 January 2019 (the page says 10/2/2016).