I'd rather he go the roblox way and "sell" the creations. Or he could make it so you can only sell decals, music, memberships for your server, vip for your server, etc
loving no, this would be a polar loving opposite to BL, due to this being a spiritual successor, and would turn away many people from our current community.
Terrible idea Actually just realized the "sell" in quotes so you may be talking about virtual currency, whoops.
Imo if you do include a money system in the game by default, you should do it in a user-friendly way, aka no Micro-transactions or that type of BS. You could have the game automatically "pay you" once every month depending on how long you've been playing that month. Like have the game pay you like 25 "dollars" per hour of playtime a month, and to prevent scamming the system you could put in a movement detector in the source code, that detects human-like input and calculates the playtime through that, so no one can use a bot to scam the system.
Also you could have a "payment" thing for when you upload builds, good mods, game modes, etc to the community as well, which would vary on the thing's ratings and download count. Also a "job" system could be done in-game where a host or admin of a server could build some sort of shop, factory, police service or something and be like a real job, except ingame, and the host / admin could set up how much you get payed every like, 5 - 25 minutes of "work"
This system would be pretty user friendly for everyone, and actually easy / possible to use or do yourself.
Also another suggestion, the game should have a few game servers that are up 24/7, except hosted by you / the game itself, as like a few base-line games. Like a City RP (Like kreon's or simmilar, not too restrictive and it'd be fun), a few TDM servers, driving / racing, and a "work" server if you desperately need money.
Another one in terms of player customization, I'd actually like it to be really indepth. Like you can choose what type of hair your character could have, the hair's color, a hat ontop. You could also choose what eyes, mouth, glasses, facial hair, etc, all independant of eachother. Same thing with the shirt, you could choose what base type, like a dress shirt, tank top, t-shirt, or v-neck or something and choose what design, colors, and decal it'd have, along with layering multiple things as well. Like you could choose a dress shirt, and have a suit-coat and tie ontop. The suit coat could also be slightly 3d, same thing with the tie. And for those you could choose what color and pattern and details as well, all independant. Also you could also select what walking and attack animations your player would have. Like a flamboyant one, creepy one, tough, sneaky, etc. It should also be possible to mod in your own decals and animations as well, and have them be visible to everyone instead of client sided (you could have an option to turn that off if the user wanted to) Also, custom player types as well, definitely
Also you could have customizable weapons in the game as well, like have a default wide selection of guns and mods you could add to them, like scopes, colors, lasers, lights, nade launcher, bipod, silencer, etc (you'd have to buy them with the virtual currency ofc so it isn't too OP, except on TDM servers, just you wouldn't have the weapon permanently in your personal inventory like you would if you bought it.) And you'd be able to mod your own ones in as well
The game should also come with a "mod tutorial" folder, with a bunch of readme files telling you what to do / how to make mods and package them (with examples), along with having some example models to teach you what the finished product should look like. The example models could be like a gun, gun attachment, melee, car, airplane, train, boat, mech, tank, player model's animations, and such like that. That way it'd make modding the game MUCH easier for beginners to figure out what to do. And in the mod tutorial folder, it'd have a text file with a good few selections for script tutorials for unity and modeling / uv tutorials for popular 3d model programs like Blender and Sketchup
Also the game could have a in-game "recording studio" that way you don't need an external program. With it you could set up multiple "cameras" like the building camera has and tweak the camera's settings, like fov and FPS, filters and such, and a simple camera tool, so you could take screenshots but tweak the settings of the said screenshot before you take it, like the resolution, fov, filters and such.
Last suggestion, try to make the vehicle physics pretty good and arcadey, let somewhat indepth and realistic. Like make the cars handle really well and smooth, yet have options in place like being able to shift manually or automatically, use different cameras the car has, such like that.
Also you'd be able to buy and test out the said items and such in the default City RP server that I suggested earlier, so it'd be much more fun and interactive than just a simple gui
Also the game should have a voice chat, except instead of being heard server wide, you'd only be able to hear a player from up to a certain distance
