Hi there, I’m working on a new game named Oklahoma BETA.
the map is really big for Roblox standards and it’s hard to decorate around the map, add more detailed buildings. it’s just a mess.
How can I make my game more realistic easily and decorate the map?
I would be really happy if you help
There are a few plugins that come to mind when i think of decoration.Part to terrain, Waterfall generator, brushtool 2.1, and tree generator
Add props around, if it’s nature related then add flowers, grass patches, grass leaves, bushes, trees, rocks, logs, lamps, pavements, stone carvings, rocky terrain
if it’s city related then add manmade stuff, buildings, lampposts, fences, mailboxes, fuses, trash, manholes, lamps, benches, pavements, trees, bushes
Just overall add tons of props, just don’t overdetail it, make it traversable and playable
Add vegetation appropriate for the map (cactuses and tumbleweeds for deserts, leafy trees for a forest or plains, and bare trees for wasteland maps.) If it’s a populated area, try to add fences, roads, big buildings, etc.
The best way I can decorate a Huge map; the ways I could do are create Models away from the Map, build it there and you can totally design it like you don’t have to be disturbed by the others parts of the Map.
I need to add hills somehow but how can I even do it? use mesh?
If you’re going for a blocky type then add huge blocks with grassland ontop, if you’re going for a more modern look then go for a mesh
If you want your hills to look smooth, I suggest using terrain editor. It works reallly well for me.
I have the same problem as you. Like @VelcroDune mentioned, try brushtool 2.1
8k x 8k stud maps are hard to decorate, that’s why mine is mostly empty 
Decorate the area with vegetation details that could fill parts of an large map with unwanted details shacks - roads - abandoned objects ect. There are helpful plugins, out there that will get things done faster.
It’s always good to have a few reference images by your side of the things your building; that way it will help you gather small ideas on what to add next, then you can supply with adding realistic buildings here and there.
I would recommend in the future pick a decent size for your map to be, so you don’t have to fill parts of the mal with repetitive props. It also depends on what you’re making with a large map after all, you can decorate the map with ‘environment details’ and then you could move on into filling it. There are many ways to go about this!