Roommates Tool allows you to place most NPCs (even a few that don't normally appear in-game) anywhere you want in each of your 4 rooms, the Research Base, Astera, Seliana, and the Seliana Pub.

Roommates Tool is a simple app that lets you place the NPCs in your favorite rooms anywhere.

A lot of people love this application because it can be used for free, you don't have to pay for it.

The only thing you have to do is to download it and install it.

If you want to use this tool, you can download it from the Google Play Store.