In the Seven Day World, the purifier can help us cleanse the echoes to obtain the rare resource Starlight. However, since purification takes some time, and during this period, monsters will continuously attack our house, attempting to destroy the purifier, we must build a special Seven Day World Purification Room. Many beginners may not yet understand how to construct it, so the following building guide is here to assist everyone in constructing it.

First, we need to build a foundation. The foundation doesn't have to be too large, 5*5 is enough. After capping it, use wood to build a 1*1 base at each of the four corners, and connect these bases with ceilings. This way, you get an outer defensive platform that is two levels high. You can move around on this platform during defense and attack the spawning monsters.

Remember, after construction, you can remove the stairs to prevent monsters from coming up. Then, in the center, build another 2-level base. It's best to choose sturdy stone materials for this. After building, cap the second level with a ceiling and place the purifier, or "Stardust Resonance Converter," on the third level.

Since this purifier needs protection, players who are concerned can enclose it with stone walls and ceilings, leaving no gaps. Also, after starting the purification, remove the stairs leading to the third level to prevent monsters from going up.

At this point, we have completed the construction. When you need to use it, you can build a sloping roof directly to the third level, remove one side of the wall, place the purifier inside, and then seal it again. Standing on the second level, you can fight with peace of mind, without worrying about the purifier being destroyed by monsters.

The above is the construction guide for the Seven Day World Purification Room. The overall construction method is quite simple and can effectively help protect the purifier. Players who have learned this can try it out in the game, reducing the difficulty of purification and obtaining more Starlight.