Bundle
Upgrade to R'lyeh Edition
Upgrade to R'lyeh Edition is a bundle available to download and play for $9.84. It includes 4 apps and 0 packages. Upgrade to R'lyeh Edition can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this bundle.
- Included Games & Apps:4
- Included Packages:0
- Steam Bundle Id:66630
Included Games & Apps
Upgrade to R'lyeh Edition includes 4 apps.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | Cthulhu: The Cosmic Abyss – Arkham Horror TTRPG Scenario | DLC | ??? | Steam Charts |
 | Cthulhu: The Cosmic Abyss – Eldritch Soundtrack | Music | 12/31/2026 | Steam Charts |
 | Cthulhu: The Cosmic Abyss - Shining Trapezohedron Quest | DLC | ??? | Steam Charts |
 | Cthulhu: The Cosmic Abyss – non-Euclidian Artbook | DLC | ??? | Steam Charts |