忘却前夜
コズミック・ホラー系カードRPG『忘却前夜』 融蝕——それは世界から存在が無くなる病。 「守秘者」となったあなたは、「融蝕」と呼ばれる世界崩壊の危機に立ち向かい、失われた記憶と運命の真実に迫る旅へと踏み出す。
Last Updated: 3/12/2026
| Developer | B.I.A.V. Studio |
| Publisher | AltPlus Inc. |
| Steam App Id | 4226130 |
忘却前夜
コズミック・ホラー系カードRPG『忘却前夜』 融蝕——それは世界から存在が無くなる病。 「守秘者」となったあなたは、「融蝕」と呼ばれる世界崩壊の危機に立ち向かい、失われた記憶と運命の真実に迫る旅へと踏み出す。
Last Updated: 3/12/2026
- Windows
- Mac
- Linux
About 忘却前夜
忘却前夜 is a RPG, Strategy, and Free to Play game developed by B.I.A.V. Studio. It was released on the Steam Store by AltPlus Inc.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, 忘却前夜 supports the following features:
- Single-player
- In-App Purchases
From the Steam community, 忘却前夜 has been tagged with the following user tags:
- PvP
- Roguelike
- Roguelite
- Trading Card Game
- Deckbuilding
- RPG
- Choices Matter
- Lovecraftian
- Mystery
- Horror
- Cute
- Turn-Based Tactics
- Card Battler
- Strategy
- Turn-Based Strategy
- Singleplayer
- 2D
Media & Sceenshots
Watch the featured video for 忘却前夜 and see the latest screenshots from the Steam Store.
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Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in real-time to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
忘却前夜 data has been sourced from:
- Valve Corporation. (2026, March 12). 忘却前夜 on Steam. Steam Store.
- Valve Corporation. (2026, March 12). 忘却前夜. Steam Community Hub.
- B.I.A.V. Studio. (2026, February 5). 忘却前夜. 忘却前夜.