Might’ve meant “material” progress, like “tangible” or progress that’s real and meaningful? “Materialistic” I think usually just means thinking about things you own rather than the quality of your life and relationships? Though saying it out now, I guess that works kind of… But I’ve only ever heard “materialistic” referring to people who only care about what someone owns rather than being a good person; never about video games or the kind of progress I think you’re wanting.

Anyway, lots of good suggestions here. I can’t add anything that meets all your qualifications; but if you are willing to dramatically break your install size requirement, I’ve been having a lot of fun lately with the Forza Horizon games (4 and 5) which are open-world racing/challenge games; but literally everything you do contributes to experience points and money you can use to upgrade and purchase new cars, and there are a lot of challenges which aren’t just races, there’s speed trials (how fast can you hit this one stretch of road), trick trials (how many jumps can you pull if in a minute) and so on.

But the install is like 65GB for FH4, and 150+GB for FH5… hundreds of high detail cars and massive open worlds, I guess… :(