Playtest Atlascatalogue

An independent overview of Steam playtests

← Back to the catalogue

Steam playtest

GERPHYON: The Ender Mansion

A signup control was found on 2026-10-29 09:15. Admission is decided by the developer.

Participation is not guaranteed — access to a playtest is allocated by the developer and the rules can change. How it works · Voluntary support for the site

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?

AdventureActionArcadeAction-AdventurePlatformerAction RoguelikeDungeon CrawlerExploration
GERPHYON: The Ender Mansion — game preview

Open playtest on Steam →

What a Steam playtest is

A playtest is a test build of a game that developers offer before release. On Steam you sign up for testing on the game's page. Whether you get access immediately, or the developer invites you first, is decided by the developer and can change.

More games with a playtest

This game is part of the Playtest Atlas overview — 3645 games in the catalogue.