Whats a gaming failure or undeveloped project you wish had a more successful release/was fully realized? For me its tomb raider angel of darkness. There were a lot of problems with the production, ranging from lack of leadership to scrapped concepts to the unpreparedness of the team for the complexity of programming for the PS2. Core design didnt have enough time to iron out the kinks even with all the crunch time, and eidos didnt give them more time because they wanted to release in june.
The game was an unfinished mess, full of bugs and haphazard level design. But its gained something of a cult status within the raider community, with memes centering on its iconic side characters like janice the parisian sex worker as well as lara's feisty one-liners. Its still being kept alive by a dedicated community of speedrunners and unofficial remasters. I often think what could have been if it had more time to at least be passable at launch. Core planned two sequels that would have continued the story. Obviously they were scrapped, core design went defunct, and tomb raider was handed over to crystal dynamics.
Haze, a completely forgotten FPS from the PS3 era that at first glance was just a shitty Halo clone but it was originally meant to be so much more than that
The game devs were some of the best to ever work on FPS games (same team behind Timespliters, Perfect Dark and Goldeneye) and their idea was to make an anti war FPS where most of the standard conventions of FPS games back then were actually the results of a drug that made the main character not see the atrocities he and his side were committing, so once you got off the drug the corpses wouldn't disappear anymore and you would start seeing blood and gore
The publisher Ubisoft didn't like this, they didn't like the politics, so they sabotaged the development and ruined the whole thing
Had they pulled it off right it may have convinced some kids in my generation that our military is evil and stopped them from joining up but that's not what military video games are for so Ubisoft killed the game