yeah, but the quality are not so good , something like man of the house , house party , short of thing would be great!The only ones I can think of are ones that have been in development for quite a while and have a lot of followers so they may be super obvious already, but some that I can think of would be
Heros Harem Guild: https://f95zone.to/threads/heros-harem-guild-v0-1-2-public-komisari.42173/
Corrupted Kingdoms: https://f95zone.to/threads/corrupted-kingdoms-v0-9-2-arcgames.31912/
Champion of Realms: https://f95zone.to/threads/champion-of-realms-v0-44b-zimon.40009/
A House in the Rift: https://f95zone.to/threads/a-house-in-the-rift-v0-5-2r1-zanith.29627/
Mythic Manor: https://f95zone.to/threads/mythic-manor-v0-16-jikei.9201/
Harem Hotel: https://f95zone.to/threads/harem-hotel-v0-12-1-public-runey.12760/
Milfy City: https://f95zone.to/threads/milfy-city-v0-6e-icstor.8012/
Summertime Saga: https://f95zone.to/threads/summertime-saga-v0-20-7-kompas-productions.276/
A Town Uncovered: https://f95zone.to/threads/a-town-uncovered-v0-32-geeseki.1433/
Some have a bit more forced story progression than others but all allow you to more or less go at your own pace.
There's also some bigger RPGM games that aren't exactly sandbox but allow you to explore a lot and not be dragged through the story like Renryuu Acension: https://f95zone.to/threads/renryuu-ascension-v21-03-14-naughty-netherpunch.1196/