Open now · By request
GERPHYON: The Ender Mansion playtest
by PixelForge
Will you survive 1000 rooms of pure arcade/horror pressure? Or will you crumble as soon as the lights begin to flicker and find yourself desperately running for your life from the indescribable, aberrant 'FRIENDS' crawling through the bowels of this complex?
It's free to ask. The developer chooses who gets in.
- Access
- By request
- On playtest since
- Aug 31, 2026
- Planned release
- 2027
- Developer
- PixelForge
- Platforms
- Windows
- Players
- Single-player
- Languages
- English, Italian
How to join the GERPHYON: The Ender Mansion playtest
- Open the game's Steam page with the Request access button. Sign in to Steam if it asks.
- Request access to the GERPHYON: The Ender Mansion playtest there. It's free and doesn't commit you to anything.
- The developer lets players in, often in batches, so it can take a while. Steam emails you when you're in, and the playtest appears in your library.
New to playtests? How Steam playtests work
About GERPHYON: The Ender Mansion
GERPHYON: The Ender Mansion
An arcade/horror/rougelite video game set in the GERPHYON Mansion, filled with rooms, puzzles, monsters, and boss fights. Will you find the courage to undertake this journey, or will you be yet another soul broken by a false friendship?
STORY
You play as a 16-year-old boy who, intrigued, wants to explore an abandoned mansion. But as soon as he enters, something goes wrong, and every open door locks behind him! Trapped, the only way to find out is to proceed from room to room, where we sometimes find \[REDACTED] notes that tell us what happened inside this enormous structure.
ROOMS
The rooms are the main part of the game; we can find rooms with items, bosses, monsters, sub-rooms, lore, specials, puzzles, etc.
Each room has its own aesthetic, may even have multiple exits and maybe even secrets, who knows...
- Every room you pass through is a step closer to the end.
MONSTERS (FRIENDS)
The mansion is inhabited by "FRIENDS," the monsters that will try to capture you for \[REDACTED].
Each has its own physical form and its own way to be faced; at certain times you'll have to dodge their attacks, at other times you'll have to fight them to drive them away.
- Remember that each one is different from the last.
MAIN FEATURES:
- 1000+ unique procedural rooms – Every game is different.
- 50+ entities with distinct mechanics – Each monster has specific behaviors and countermeasures.
- 100+ items – Each item can have unique stats/passives.
- 10+ Modes – Speedruns, weird difficulties, fun modes.
- 3+ Endings
- 10+ Bossfights
- Environmental Storytelling – Discover the story by reading notes and observing a unique world.
- Accessibility – Difficulty adjustment options, remappable controls, and more.
- MANDATORY REQUIREMENT: A best friend is recommended to play.
From the game's Steam page.
