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Room types: all 10 explained

The map is a choice of rooms, and the room type is the price of the next reward. Colorful Media published a ten-row table. GameWith and NoobFeed describe the same rooms in play, with one extra name that does not sit in the ten.

Area 1 map HUD showing Mugen Depth 47 on floor 5
Steam store screenshot, © Denneko Yuugi. Checked 7 Nov 2026.
Spoils of War cards for Overnight Kit, Glacier Rend, and Gamma Reinforced Plating
Steam store screenshot, © Denneko Yuugi. Checked 7 Nov 2026.

How to read the table

English names on several rows are working translations of the Japanese room names. Where Steam or a publisher page has not printed an official English room name, the Japanese name is the one to trust. The status column says how many write-ups back each row.

Combat rooms are where level rises. Treasure rooms trade Mugen Depth for a rarer Attribute. Rest rooms heal and raise depth, with the choices “rest a little,” “rest a long time,” or “leave.” The sakura room spends HP. Shops spend Eternal Coins. Stairs go down and do not let you walk back. Random events can hand you a free Attribute or a penalty. Elite rooms are harder combat. The boss room ends the area. The boundary gap raises depth and moves you to another space, with a better chance at rare Attributes and a random floor effect.

The name that is not in the ten

NoobFeed mentions a shrine that can heal or clear depth. Colorful Media’s ten-room table does not list it. I leave the shrine out of the table and mention it here as a single-source report. Weights, exact coin prices, and spawn rates are unpublished, so those columns do not exist.

Depth math is on Mugen Depth. The floor-by-floor climb is on the area walkthrough.

Combat Room戦闘部屋Fight a fixed set of enemies; victory grants EXP, EC and a pick-one-of-three reward.Time and HP; the fight must be cleared to continue.2 sources (GameWith play review / walkthrough, NoobFeed review). English label is a working translation; no official EN room string captured.
Treasure Room宝の間Trade Mugen Depth for a rare Attribute; reward choices are random.Raises Mugen Depth.2 sources (GameWith play review / walkthrough, Colorful Media room guide). English label is a working translation; no official EN room string captured.
Break Room休憩部屋Recover HP; options include rest a little, rest longer, or leave.Raises Mugen Depth; longer rest heals more and costs more depth.3 sources (GameWith play review / walkthrough, Colorful Media room guide, NoobFeed review). English label is a working translation; no official EN room string captured.
Sakura Room桜の間Spend HP to lower Mugen Depth, remove Depth Effects, or obtain a special Attribute; multiple effects can be chosen at extra cost.HP.3 sources (GameWith play review / walkthrough, Colorful Media room guide, 4Gamer play report / developer interview). English label is a working translation; no official EN room string captured.
ShopショップSpend EC on Attributes and upgrades.EC.2 sources (GameWith play review / walkthrough, Colorful Media room guide). English label is a working translation; no official EN room string captured.
Stairs Room階段部屋Move to the next floor; you cannot return to the previous floor.Ends the current floor.2 sources (GameWith play review / walkthrough, Colorful Media room guide). English label is a working translation; no official EN room string captured.
Random EventランダムイベントA random event with a choice; outcomes can help or hurt, and some events grant a free Attribute.Varies by event.2 sources (GameWith play review / walkthrough, Colorful Media room guide). English label is a working translation; no official EN room string captured.
Elite Combat Roomエリート戦闘部屋A stronger enemy appears; better rewards are possible.Time and HP.1 source (Colorful Media room guide). English label is a working translation; no official EN room string captured.
Boss Roomボス部屋Boss fight; victory moves you to the next area.Ends the area.1 source (Colorful Media room guide). English label is a working translation; no official EN room string captured.
Boundary Gap境界の狭間Pay Mugen Depth to move to another space; rare-Attribute opportunities increase, and the floor effect is random.Raises Mugen Depth substantially.1 source (Colorful Media room guide). English label is a working translation; no official EN room string captured.

Questions

Do stairs let me return?

The room notes say the stair room moves you to the next floor and you cannot go back.

Which rooms raise Mugen Depth?

Movement in general, treasure rewards, rest healing, and the boundary gap. See the depth page for the shared list.

Related

Sources