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O3: Hollow Descent PlaytestEventsPlaytest Demo: 07-09-26.

Game update

Playtest Demo: 07-09-26.

O3: Hollow Descent Playtest · published 7 Sep 2026, 10:12 UTC

All events Players around this date Read on Steam

Mac, Linux, and Steam Deck have been updated to the latest version.

Testing the upscaler options on Steam Deck and macOS.

More from O3: Hollow Descent Playtest

Other announcements

O3: Hollow Descent PlaGame update6 Sep 20266 Sep 2026, patch 1.0.3Fast update, Windows only for the moment: I fixed the pet behavior on Bomb Head. Now it’ll explode normally again. Also fixed some missing door collisions on the right side of the map. Fixed the boss back door too. It must remain closed... Now it’ll stay shut after the fight, and the only door that opens is the one to exit the floor. Thanks again for the feedback everyone! New update coming soo…O3: Hollow Descent PlaGame update26 Aug 2026Playtest Update: GODMODE Suit, Weapon Switching & Debug IDsNew testing features and quality of life improvements are now live. GODMODE TESTING SUIT A new testing suit can now be unlocked from the Player Suit Selection screen. Keyboard: Type GODMODE Gamepad: D-pad Left, Right, Left, Right, Left, Right, then Reload The suit regenerates health every second and has a fully emissive skin. It is intended as a testing tool, making it easier to explore rooms,…