Oh, something I thought of, there is a ROM Hack for Super Mario World I'd recommend, too, called "Diagonal Mario 2". Being in that community, I know of several fun, funny, and trolly hacks- but Diagonal really doesn't rely on SMW, kaizo, or community knowledge. Its humour and gameplay are pretty accessible for anyone.
There is a mod made for Halo: Custom Edition called "Cursed Halo". The creator, Inferno Plus, has made three versions, now, and the newest is for Halo: Master Chief Collection. The humour is abundant, and it is an absolute ride when he makes a new version.
I don't know about Diablo 2, but Blizzard is so shady and messed up nowadays that I wouldn't be surprised that they "lost the source code" to prevent modders being able to port games, etc.
As for transformers, it was never lost (PCGamer, if you don't like Xfire). Hasbro claimed they wanted to provide access to legacy games, but completely made up that the source was lost. Now that we know that the source is still available... well, Hasbro clearly hasn't tried to rerelease those games.
(note: I know this is the same company, Activision Blizzard in both cases. For anyone reading who doesn't know, they were not the same company for the release of Diablo II, and a good amount of time afterwards.)
Halo excelled at being a FPS on console before auto aim and aim assist were a thing. The terrible, tank-like movement and super floaty, slow jumps would be trash in any PC FPS around its time. But having players move at Quake speeds in Halo would be frustrating, and no one would hit things in multiplayer.
Or would, on a game without modern control assist, anyways. Games don't tend to be as fast as they used to, and Halo has really sped up as a series, but it is still on the slower side.
INSIDE was easier than LIMBO, but a worthy spiritual successor. Very good in the genres of puzzle platformer and horror. No cheap tricks, just good work all the way through.
The story is VERY open ended, and I felt a little slighted at first, but it grew on me. As far as very open ended stories, so was LIMBO's.
Long before I had any knowledge of transgender or even transexuality, I knew to use they/them when gender was unknown. I agree that the "singular they" is long accepted, correct, common English.