MLO Interiors
Free and paid GTA 6 MLO interior mods - custom walkable interior maps (Map Load Objects) that stream in when you enter. Restaurants, nightclubs, mansions, garages, police stations, hospitals, fire stations, retail stores, gas stations, hideouts and apartment shells, packaged as `.ymap` and `.ybn` files for OpenIV install. Pair with [Roleplay scripts](/playstyle/roleplay) to give RP communities the immersive spaces they need beyond what ships in base GTA 6.
About mlo interiors mods
MLO stands for Map Load Object - a fully-modeled walkable interior that streams in when you enter. The base game ships with handful of accessible interiors (your apartment, certain mission spots). MLO mods add hundreds more: restaurants, nightclubs, mansions, police stations, hospitals, garages, custom hideouts, retail stores, gas stations.
MLO interiors are the backbone of any serious Roleplay server. Officers need a station, EMS need a hospital, civilians need businesses to work in. Browse the Maps category for the broader map-mod catalog and pair with Roleplay playstyle scripts for the full immersion stack.
Single-player MLOs work too - many cinematic and machinima creators use custom interiors as Rockstar Editor backdrops. See the Cinematic playstyle for related tooling.
Installing MLOs typically requires OpenIV to place .ymap and .ybn files in the right RPF archive. The Install Guide walks through map-mod installs step by step.
Common questions about mlo interiors mods
What's the difference between an MLO and a YMAP?
An MLO is a fully-modeled interior with collision, lighting and props. A YMAP is the file format that loads custom map geometry into the world (used for both interiors and exterior props). Most MLO mods include both .ymap and .ybn (collision) files.
Do MLOs work in single-player?
Yes - most MLOs work in offline Story Mode, though some are optimised for FiveM streaming and may not load cleanly without minor tweaks. Check the mod page's compatibility notes.
Can I use MLOs in GTA Online?
No. Loading custom interiors in GTA Online is an instant ban. MLOs only run in Story Mode or on private servers (FiveM, RAGE MP, alt:V, future SixM).
How do I install an MLO?
Use OpenIV to place the .ymap, .ybn and texture files in the appropriate RPF archive. Detailed paths are in the Install Guide. Larger MLOs may need HeapAdjuster 600 to avoid load-time crashes.
Related playstyles
Before you install mlo interiors mods
How to install GTA 6 mods
Step-by-step setup, prerequisites and crash fixes - works for every paid & free mod here.
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Discuss mlo interiors in the forum
Reviews, work-in-progress, recommendations and creator chatter - join the conversation.
Make mlo interiors mods?
Pick MLO Interiors when uploading your mod (you can add up to 3 playstyles per mod) and it'll surface here automatically - no keyword juggling required.